A giant LED screen is switched on with vivid pictures at the Tiananmen Square in Beijing on September 1, 2015. Two such screens have been set up on the square and they are currently being adjusted. Each screen is 18 meters high and 26 meters wide, and the total screen area covers 360 square meters. The electronic screens will be used to broadcast the military parade on September 3. (Photo: China News Service/Wang Xu)
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