... air cushion 气垫 air defense drill 防空演习 Air deflector 导流板；导风板，气流偏转板 ...
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air r defense drill 防空演习
Yesterday morning, the first of Haicang District of air defense large emergency drill 15 emergency detachment of 200 people attended the 60-minute drill.
昨日上午，海沧区首次举行防空袭大型应急演练，15支应急分队200多人参加了60分钟的演练。
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