China Environmental Industry Network

Antenna and analog closed-circuit television is used to connect radio frequency (RF) interfaces. As the most common video connection, it can simultaneously transmit analog video and audio signals. RF interface transmission of video and audio mixing encoded signal, the circuit will display a series of mixed-signal separation coding, decoding the output image. Due to the need for video, audio, hybrid coding, the signal will interfere with each other, so the quality of its output quality is the worst of all interfaces. Cable and satellite TV receiving equipment is also commonly used RF connections, but in this case, they transmit a digital signal.
2, composite video
did not include a radio frequency interface, audio, composite video (Composite) usually yellow RCA (Cinch) connector. “Composite” means that the same luminance and chrominance signal transmission channel analog signal, but the TV can not be well separated if the two signals, there will be a shadow.
3, S terminal
S terminal (S-Video) connection using Y / C (luminance / chrominance) separation-type output, using a four wire transmission signal, interface four-pin interface. Interface, two-pin grounded, the other two needles were transmitted luminance and chrominance signals. Because the luminance and chrominance signals are transmitted, S-Video is better than composite video. However, S-Video anti-jamming capability is weak, so the S-Video cable length should not exceed 7 meters.
4, color
Component (Component) are usually labeled as Y / Pb / Pr, red, green, blue three colors to label each cable and interface. Green cable (Y), transmission luminance signal. Blue and red cables (Pb and Pr) the color difference signal is transmitted. The effect of color is better than S-Video, DVD and so many high-definition playback devices are used on the interface. If you use good quality cables and connectors, even with 10 meters of cable, component cable can transmit good picture.
5, VGA
VGA (VideoGraphicsArray) there is a name known as D-Sub. 15-pin VGA connector, divided into three rows, each row of five holes on the graphics card is the most widely used interface types, the vast majority of graphics cards come with such an interface. It transmits red, green, and blue analog signals and synchronization signals (horizontal and vertical signals). Device using a VGA connection, cable length should not exceed 10 meters, and pay attention to connectors are securely installed, it may cause a ghost image appears.
6, DVI
DVI (DigitalVisualInterface) interface and VGA are the most commonly used computer interface, the difference is with VGA, DVI can transmit digital signals, and no longer into several analog conversion, so the picture quality is very high. Currently, many high-definition television also provides a DVI interface. Note that, DVI interface with a variety of specifications common is DVI-D (Digital) and DVI-I (Intergrated). DVI-D can only transmit digital signals, you can use it to connect to the video card and flat-panel TV. DVI-I DVI-D can be in and VGA conversion.
more information on the DVI connector DVI connector, please refer to Detailed
7, HDMI
HDMI (HighDefinitionMultimediaInterface) interface, the interface is only recently It is the same with DVI digital signal transmission. The difference is that HDMI interface can not only transfer high-definition digital video signals, can also simultaneously transmit high-quality audio signal. RF interface also functions with the same, but thanks to all-digital signal transmission, does not appear as radio interfaces, as the case of poor quality. No HDMI interface for the user, you can use the adapter to convert digital DVI interface, HDMI interface, but this will lose the audio signal. High-quality HDMI cable, even up to 20 meters, but also to ensure high-quality picture.
8, IEEE1394
IEEE1394, also known as FireWire or iLink, it can transmit digital video and audio and machine control signals with high bandwidth, and very stable. Usually it is mainly used to connect digital cameras, DVD recorders and other equipment. IEEE1394 Interface There are two types: the hexagonal 6-pin interface and a small 4-pin square connector. Hexagonal 6-pin interface to the connected equipment, and the square 4-pin interface is not.
9, BNC
BNC (coaxial cable card ring interface) is mainly used to connect high-end home theater products and professional video equipment. BNC cable has five connectors, for receiving red, green, blue, horizontal sync and vertical sync signals. BNC connector allows video signals to reduce interference with each other, can achieve the best signal response effect. In addition, the special design of BNC connector, the connection is very tight, do not worry or loose resulting poor contact.

DUBLIN (Reuters)-Policearrested32peopleonTuesdayinsimultaneousraidsacrossseveralEuropeancountriestargetinganallegedIrishorganizedcrimering, officialssaid.
ThearrestsinBritain, SpainandIrelandwereaimedatagangwhichIrishpolice, whoaretryingtoclampdownonorganizedcrime, suspectofdrugsandweaponsdealsandmoneylaundering.
Irishpolice, whohavebeenmonitoringtheallegedgangforsometime, saidtheyhadarrestedonemanandhadsearched17premisesinthemorningoperation.
Britishpolicesaid32peoplehadbeenarrestedinsimultaneousraids, includingninemenandtwowomenintheUnitedKingdom .
Theysaid20peoplewerearrestedinSpain, amongthemthemanbelievedtobetheheadofthenetwork, a53-year-oldIrish-bornBritishnationallivinginMalaga.
“Thisnetworkhasbeenofferingaglobalinvestmentservice, plowinghundredsofmillionsofpoundsofdirtycashintooffshoreaccounts, companies, andpropertyonbehalfofcriminals,” Britain SeriousandOrganizedCrimeAgency (SOCA) saidinastatement.

TheheadofIreland GardaNationalDrugsUnit, DetectiveChiefSuperintendentTonyQuilter, saiddrugs, cashandgunshadbeenfoundintheoperation, whichinvolved750lawenforcementofficers.
“Acrossthethreejurisdictions, money, firearmsanddrugshavebeenlocated,” hetoldnationalbroadcasterRTE.
Irishcities, suchasLimerickinthewest, havelongsufferedfromgangviolence, drugtraffickingandmoneylaundering – activitiesthatoftensustaintheparamilitarygroupsoperatinginNorthernIreland, apartoftheUK.
(ReportingbyMarie-LouiseGumuchianandPadraicHalpin; additionalreportingbyKylieMacLellaninLondon; editingbySteveGutterman)

(Zhongguancun Online Datong station market) recently, I learned from the three-dimensional digital Huaqiang, Canon 550D price of 4158 yuan, like a friend to the city of Datong Electric Drum layer 8, the computer stores the digital purchase, the dealer Tel: 0352-2041138.
Canon 550D
Canon 550D using the traditional SLR shape, black body looks very atmospheric. Canon 550D with a 3.0-inch, 1.04 million pixel display, the ratio of 3:2 is more suitable for photo, video browsing. Canon 550D equipped with a 18 million pixel CMOS sensor, 1080p high-definition can be achieved (with full manual control) video recording capabilities, 7D also equipped with the same specifications as the 63-point metering system, the camera performed very well. In addition to these features, the new 550D also has the 3.7 / second continuous shooting speed. Sensitivity to support from ISO100-6400, expandable up to ISO12800. It also supports the latest SDXC card storage. Overall body size is 128.8 × 97.3 × 62mm, weighs 530 grams. Canon EOS550D also has a plus or minus five-speed exposure, support Eye-Fi compatible protocol. Canon 550D Digital SLR Camera APS-C size digital SLR cameras manually operated manually full support sensor CMOS Image Sensor Size 22.8 × 14.9mm 18 million effective pixels, maximum resolution 5184 × 3456 image processor DIGIC4 focus mode type: TTL secondary image registration, phase detection AF points: 9 AF Metering range: EV-0.5-18 (23 ℃ / 73 ℉, ISO100) AF mode: Single AF, AI Servo AF, AI Autofocus, Manual Focus (MF) AF-assist light: short sent by the built-in flash Display Size 3.0-inch continuous flash and type 1.04 million pixel pixel LCD Coverage: 100% Brightness adjustment: manual (7 level) sensitivity Recommended Exposure Index: Basic shooting zone mode: ISO100-3200 set automatically Creative Zone modes: ISO100-6400 (single-level units), ISO100-6400 Auto, ISO sensitivity can be extended ISO12800 Continuous function Continuous shooting speed: approx 3.7 / sec Maximum Burst JPEG (Large / Fine): approximately 34 RAW: Approx 6 RAW JPEG (Large / Fine): Approx 3 * Figures are based on Canon testing standards (ISO100 and Standard Picture Style), with 4GB memory card. Video shooting video compression: MPEG-4AVC/H.264 variable (average) bit rate audio recording format: Linear PCM recording format: MOV record size and frame rate: 1920 × 1080 (Full HD): 30p/25p / 24p1280 × 720 (HD): 60p/50p640 × 480 (SD): 60p/50p cutting 640 × 480 (SD): 60p/50p * 30p: 29.97 frames / sec, 25p: 25.00 frames / sec, 24p: 23.976 帧/ s, 60p: 59.94 frames / sec, 50p: 50.00 frames / sec file size 1920 × 1080 (30p/25p/24p): about 330MB / min 1280 × 720 (60p/50p): about 330MB / min 640 × 480 ( 60p/50p): about 165MB / min cutting 640 × 480 (60p/50p): about 165MB / min memory card types SD / SDHC / SDXC card file format Recording format: Design rule for Camera File System 2.0 (DesignruleforCameraFileSystem2.0) Image types: JPEG, RAW (14 bit, Canon original) RAW JPEG simultaneous recording Dimension 128.8 × 97.5 × 75.3mm Weight 530 (body only) g
Edit Comment:
Canon 550D with 18 million pixels of imaging power, DIGIC4 image processor, 63-point metering system, 3 inch 1.03 million pixel display, full HD video recording capabilities. Overall performance is very comprehensive.
Canon 550D [Reference price] 4158 yuan [sales business] D Huaqiang Digital [Contact] 0352-2041138 [business address] City, Shanxi Province, Datong Electric Drum computer digital shop floor, No. 8 [shop URL] http://dealer.zol.com.cn/d_36503/
For more professional information, join the Datong Internet surfers QQ Group: 1840492

East De Xide, a national division; East and West Berlin, a city split. History will be surprisingly similar. Tags: Berlin WallCold War BerlinWall50yearson: familiesdivided, lovedoneslost
five decades the Berlin Wall: flesh apart, loved ones lost a HalfacenturyaftertheinfamousGermanwallwasbuilt, twoex-EastBerlinerslookbackathowitchangedtheirlivesforever
Germany in this infamous “wall” (Berlin Wall, Translator Note) built nearly half a century, the two former East Berlin, recalls how his life has been thoroughly changed. * HelenPiddinBerlin
Author: HelenPiddinBerlin guardian.co.uk, Friday12August201114.23BST
Guardian
UrsulaBach, whofledtoWestGermanyat18.ShewassixmonthspregnantatthetimetheBerlinWallwentupin1961, andwasnevertoseethefatherofherchildagain.Photograph: UrsulaBach-Puyplat
厄苏拉巴赫, 18 years old, fled to West Germany .1961 construction of the Berlin Wall, when Esu Latin has six months pregnant, since no greater can meet with the child father.
Source: 厄苏拉巴赫 – Pu Yi Blatter Whensheheardthenewsthatwouldcauseherseparationfromthefatherofherchildforever, UrsulaBachwas18yearsoldandsixmonthspregnant.Shewastired.Thebabywasusingupallherenergysoshewaslyinginbedwiththeradioon, tryingtogetsomerestatthechaoticrefugeecampinWestGermanywhereshehadfledafewmonthsearlier, leavingherfiance, Fried, backontheeastside.Suddenlyherbraintunedintowhatshewashearing.
when E Sula Bach Berlin Wall that separated her permanently with the child father when she was only 18 years old and had six months pregnant. She was extremely tired, because it depicts the baby exhausted all her energy, just lying in bed, to make their voices through the radio a few months ago to escape the chaos of the refugee camps in West Germany to get a rest. She fled, so that unmarried Fufuleide their stay in East Germany. Suddenly, in a radio broadcast to attract her full attention. Shestillremembersthebroadcastwordforword: “ItisSundaythe13August1961.YouarelisteningtothenewsonBavarianRadio.EarlythismorninginBerlintheborderpoliceandmembersoftheoperationalcombattroopsstartedtoerectbarbedwireandasecurityfencebetweentheeasternandwesternsectorsofthecity.Sixty-nineofthe81bordercrossingshavealreadybeenclosed.ResidentsoftheGDRandEastBerlinarenowonlyallowedtocrosswithspecialpermission.TheS-Bahnisnolongerrunning …”
clear that she can still remember every word is broadcast, “Today is August 13, 1961 , Sunday. You are now listening to the Bavarian Radio broadcast news for you in Berlin earlier this morning, border police and combat and security forces erected barbed wire fence, isolation of the East and West Berlin. 81 border crossings in the 69 is closed. German Democratic Republic and East Berlin residents only hold special permits are allowed to leave. light rail stop operating …”" Icouldn believeit-Ineverthoughttheywouldhermeticallysealtheborder, “Bachsaidthisweek, recallingtheday50yearsagowhentheEastGermangovernmentdecidedtostemtheflowofrefugeesfleeingtheGermanDemocraticRepublic (GDR) byputtingupwhattheyeuphemisticallycalledthe” anti-fascistprotectionmeasure “. SheneversawFriedagain.Thefirstherson, Andreas, everheardfromhisfatherwasaftertheWallfellin1989.Itwastoolatethenforthemtobuildarelationship.
“I was simply not acceptable, I simply did not think they could be so tight blockade of the border,” Ms. Bach recalled 50 years ago this week East German government decided to prevent the hordes of refugees fleeing the Democratic Republic of the established calling them “anti-fascist protective measures.” She never failed to see Fred. Andre was the eldest son in 1989 after the Berlin Wall had heard his father. For them, rebuilding the family was too late. BythetimeBachandhermother, brotherandgrandmotherescapedfromSaxonyAnhalton21May1961, 2,000 EastGermancitizensadaywerearrivinginWestBerlin.The3.5millionEastGermanswhohadleftsincethefoundingoftheGDRin1949madeupabout20% oftheentireEastGermanpopulation.Enoughwasenough, decidedWalterUlbricht, firstsecretaryoftheSocialistUnitypartyandGDRstatecouncilchairman.Despiteclaimingpubliclythat “nooneisplanningtobuildawall”, Ulbrichtgaveordersforengineerstodojustthat.
Was Bach and her mother, brother and grandmother in May 1961 21 Hart Sen fled the saxophone, the day East Germany there are 2000 people flock to West Berlin. Since 1949, the German Democratic Republic was established, there are about 3.5 million residents to flee East Germany, about 20% of the total population of East Germany. Situation must be controlled, the first secretary of the Socialist Unity Party and the Democratic Republic National Committee – Walter Ubud Dietrich announced that, despite the publicly declared that “no wall plan”, but the command is Ubud Dietrich engineers started to build. Bach motherdecidedtoleavewhentheEastGermangovernmentstartedcrackingdownonprivateenterpriseintheirmissiontoturnamarketeconomyintoacentrallyplannedone. Sheranaleathershop, andwasfindingitincreasinglydifficulttostayafloataftertheGDRauthoritiesstoppedherdeliveries. “Theywantedtogiveheranothingsortofjobinthetradedepartmentinstead,” saidBach.
When the East German regime began to destroy private enterprise, market economy as the shift from a centrally planned economy, one aspect of Ms. Bach mother decided to flee East Germany. She runs a leather shop, but when she found her to stop the German Democratic Republic after the delivery is difficult to maintain the operation. “East Germany Ministry of Trade did not want to give my mother any transaction,” Ms. Bach said. Bachwasinlove.Shedidn wanttoleaveFried, butadivisionopenedupwhentheirteachingcourseturnedmorepolitical. “Wewereaskedtospyoneachotherandweretoldnottogotochurch.Thatmeantthatourchildwouldnotbeabletobebaptised, whichwasveryimportanttome,” shesaid.
Ms. Bach caught in love, she did not want to leave Fred, but since their education has become increasingly The more political, differences begin to show. “We were asked to supervise each other, and we were ordered not to go to church, which means we can not accept the baptism of children, which is very important to me.” She said. Friedwasacommittedcommunist; Bachwasnot.Shedecidedtoleaveanddidn tellhimshewasgoing, thoughshelonghopedhewouldfollowher.Thelastshesawofhimwaswhenshewasonthetrainheadingoutoftownforever: “Hewavedandmotionedformetoopenthewindow, butthewindowwouldn open. Ididn seehimagain.”
But Fred was a loyal party member, however, Ms. Bach is not. She decided to flee did not let him know that although she would very much like Fred will go with her. The last time I saw him at the train never left the town, “Fred waved to me and motioned me to open the windows, but damn it did not hit the windows do not open. Then I never see him.” TornteenagerWhentheborderguardsstartedunravellingmilesofbarbedwireacrosstheborderthatSundayinAugust1961, Jan-AartdeRooijwas14andalongwayfromhome, atayouthcampinWestGermanyrunbyachurchcharityaimedatgivingcitychildrenabitoffreshair.
long-suffering young
August 1961 when the border guards that started along the border on Sunday when the line started laying barbed wire, 14-year-old Bradley A Zheng to Duarte from his own family, the church in a charity managed by the West German youth camp, designed to allow the city to enjoy a little more than children fresh air.
Two weeks later he left the camp in West Berlin, the camp organizers claimed that he deceived his relatives to take him home. His parents could not find him, they on the other side of the wall, library Benny library east. “Irememberthinkingtomyself, hatdoIdonow? quot; SaidDeRooij, now64, inBerlinthisweek. “IactuallyquitelikedlivingintheGDR.Iwasayoungpioneer [thesocialistscout-likemovement] andhadallmyfriendsandfamilythere.ButIhadalwayslovedgoingtothewest, largelybecauseyoucouldbuythingstherethatweren availablebackhome-MickeyMousecomics, oranges, cowboystories.”
“I remember At that time have been asking myself, “how should I do? “” De roa in Berlin this week, said, “In fact, I very much like to live in a democratic Germany. I am a young pioneer (you know, but the original was made in order to take care of English readers explained,” similar to the Boy Scouts of socialism. ” activity), and my friends and parents in East Germany, but in fact I have always liked King West Germany ran over there, mainly because you can buy some in East Germany did not buy things, like Mickey Mouse cartoons, orange and the cowboys of the story. “Beforethewallwentup, hemaderegulartripstotheWestwithhismother, afurrier, whensheneededtopickupPersianfursthatwereunavailableintheGDR.” AlotofhercustomerswereRussiansoldierswhowantedthebestfortheirwives, sowewouldmaketripsWesttostockup.ImportingfromtheWestwasillegal, soshewouldtakemewithherandstrapfursaroundmywaist, hiddenundermyjumper, sothattheborderguardswouldn discoverthemonthetrainhome. Itwasallveryexcitingtoayoungboy. “TherewasafamilyfriendlivingintheWestBerlindistrictofCharlottenburgwhohadoftenputupDeRooij.Buthedidn feelsafethereamidthepoliticalturmoil.” Afterafewdaysthepolicecamelookingforme.Apparentlymyparentshadreportedmemissingandadmittedtheyhadafriendinthewestwhomightbelookingafterme.Iranaway. “
before the establishment of the Berlin Wall, so rea fur traders who often visited Germany with her mother when she needs to store goods in a democratic Germany could not purchase the Persian fur. “Many of her clients are those who want to buy rare goods to his wife Russian soldiers, so we need to store goods to West Germany, but imported from West Germany is illegal, so my mother would take me to go, the fur strapped to my waist, cover the following in sweaters, so we border on the train home we can not find this on a boy definitely exciting for me is in West Berlin Charlottenburg district a family friend can be accommodated for de roa, but in political turmoil, he did not sense of security. “A few days later the police to the family friend home to find me. Obviously my parents had reported me missing and acknowledge a family friend in West Germany may take me. So I ran away. “Forthreeweeks, DeRooijsleptrough, spendingmuchofhisdaysbegging (” backthenyoucouldsay, fromtheeast, canIhaveamark? “) Andmonitoringtheprogressofthewall.” Therewasthisonestreetweusedtogotowhichwassplitdownthemiddlebythewall.Thestreetwasinthewestbutthehouseswereintheeast.Thesoldiersbrickedupthefrontdoorsbutpeoplejumpedoutofthewindows, “hesaid.
The next three weeks, Pedro A fieldwork time spent on begging (“In the time you just say” I come from the east to escape, good enough to give me one mark, right? “) and closely watching the progress of the Berlin Wall. “We used to always pass the piece of the Berlin Wall Street was split in two from the middle of the street was in West Berlin, and the house was zoned to East Berlin in. Soldiers sealed the front door with a brick and people only from the window garden come out. “” Therewasagroupofusonthewesternsidewhousedtoalltrytoknockoffthetoplevelofthewallbeforethecementhadtimetotry.Wewereabitofamob; wewouldallsurgetogetherandsmashit.Itwasaveryaddictivegame. “
” In the West Berlin side, everyone we are a child, has been trying in Berlin before drying cement wall to knock the top wall block. we are a small group of mobs, we will rush to go out together to carry out sabotage activities. It was a people jealous addictive game. “ItwasseeingtheEastGermangovernmentwallinginitsresidentswhichmadeDeRooijdecidetoneverreturn.” IwenttotheAmericansector [ofWestBerlin] andaskedanofficialtohelpme.HegavemeaWestGermanIDcardandputmeonaplanetoWestGermany. “

East German regime in the neighborhood of their actions make a small wall made the decision never to go back to Ah. “I went to the U.S. zone (that is, West Berlin) request the officials there to give me help and he gave me a card West Bureau people, and arranged for me to fly to West Germany.” Eventually, thefamilywhorantheyouthcampofferedtofosterhimandhemovedthereuntilhewas21.Hedidn seehismotheragainuntil1970, whenshemadeherfirsttriptothewestaftersheretired-theGDR, soparanoidaboutitscitizensescaping, positivelyencouragedolderpeopletomovetothewestassoonastheywerereadytodrawastatepension.
Finally, responsible for youth camps that house the couple adopted him in his 21 that year he moved there. Until 1970, he again saw the natural mother, it was her first trip to West Germany, in her retirement – people have serious doubts about the German Democratic defectors might, but “actively” encourage ready to state pension age were immediately moved to West Germany. Mother guiltFiftyyearson, thescarshavenotproperlyhealedforBach, now68. “Thefeelingofguilthasnevergoneaway, ofleavingmysonwithnofather,” shesaid. “Irememberwhenhewasaboutfouryearsold, Andreascameuptomeandsaid, don haveadaddy. quot;
Full of guilt of the mother < br />
50 years, now has 68 years, Ms. Bach is still the scars heal hearts, “that makes his son without a father guilt can never forget,” she said. “I remember Andre 4 years old, he came up to me saying,” I not a father. “Foralongtime, shekeptquietaboutwhathadhappened.But10yearsagoshestartedwritingdownherstory, whichshelightlyfictionalisedintwonovels-IntheWestandForward, March.Thefirsttimeshereturnedtotheeast, shefelt” physicalpain … ItwasasthoughIwasbeingphysicallyattacked.Thememoriesstillshakemenow. “
A long time, she was what happened remain silent until 10 years ago, she began to record their own stories, slight novel treatment into two novels – “in West Germany” and “Forward March.” Bach first return to East Germany when the President felt that “physical pain .. . like my body hurt the same. That memory to me is still perturbed. “ShedespairedlastmonthwhenanewsurveyshowedthateverythirdBerlinerconsidersthebuildingoftheBerlinWalltohavebeen” notwrong “.” Itmakesmecrazilyangry.Theydon seethebadthings, “shesaid.
When he learned last month, the latest opinion poll shows one-third of people believe that the construction of the Berlin Wall, Berlin is the right time , Ms. Bach is in despair, “I am simply out of anger from those who did not witness the occurrence of crime. “DeRooij, nowafatherofseven, saidthenostalgiaforthewallwas” understandablebutnotlogical “. Yes, hesaid, certainthingswereperhapsbetterintheeast-kindergartenprovision, forexample, andtherewasmaybemorecommunityspirit.” Butthosewhoexcusethewallareignoringhowwrong, howdamagingit-andthepoliticalsystembehindit-wastosomanypeopleinsociety. “
De roa, is now seven children. father, that this memory of the Berlin Wall was “understandable but not logical.” Yes, he did say some in East Germany may be a better place, such as nursery system, and there is more collective spirit. “But those who defend this wall, people ignore it, and the political system behind him, brought error, and many people in society caused great harm. “Hesaidhedoesn objecttowhatsomehavecalledthe” Disneyfication “oftheBerlinWall: actorsdressedasborderguardsposingforpictureswithtouristsbyCheckpointCharlieinBerlinandTrabant” safaris “whiskingvisitorsaroundcoldwarsitesinBerlin.” Youngpeoplecannotcomprehendthatjust22yearsagotherewasawalldividingthiscity.Anythingthathelpsthemtounderstandhowandwhythingswereastheywerehasgottobeagoodthing. “
He said he did not oppose the claim by some people on the Berlin Wall” Disney “of: actor The border guard who played Checkpoint Charlie in Berlin (October 1961, the Soviet Union and the U.S. tanks had another confrontation on both sides of Checkpoint Charlie, the checkpoint and again become a flight events occurred in any other parts of the city, feel the atmosphere of the Cold War not as clear here that, Translator Note) put shape and tourists photo, satellite card car “Expedition No.” contains tourists visit the site of the Cold War in Berlin, “today young people can not understand it 22 years ago a The city plans to put wall-and-conquer. Any help them understand the reason this history of development and measures are conducive. “