Culture

Helicopters practice acrobatic moves for expo

( chinadaily.com.cn ) Updated: 2013-09-05 21:47:44

Helicopters practice acrobatic moves for expo

Visitors watch an air show during the Second China Helicopter Exposition in the northern city of Tianjin, Sept 5, 2013. The exposition kicked off on Thursday. [Photo/Xinhua]

 
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