采用YA-16多闪光高速摄影反相拍摄导爆管经过不同的消爆空间后出口流场的动态结构，以及出口火焰在持续时间内的累积照片，从有利于点燃延期药的角度出发，对出口流场进行了研究。
Many photographs of out let flow field and flame after different decay space were presented by use of YA-16 high speed camera with multi-flashes in an opposite photograph and time accumlate camera.
降水积水的严重程度不仅与降水强度相关， 也与累积降水量和降水持续时间的长短有关。
The severity of waterlogging is not only related to the rain intensity, but also associated with the cumulated precipitation and the precipitation duration.
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