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4th China Int'l Helicopter Expo opens in Tianjin

  CHINA-TIANJIN-HELICOPTER EXPO-FENGLEI (CN)

  China's Fenglei aerobatic team performs at the opening ceremony of the 4th China International Helicopter Expo in Tianjin, north China, on Sept. 14, 2017. The expo kicked off here on Thursday. (Xinhua/Zhang Yongjin)

[ Editor: WPY ]