... 排泄阀 drain trap 泄水槽 drain trough 放气 drain vent ...
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... 滴谱仪|drop size meter 滴水槽|drain trough 滴水盘|drip pan, water drip ...
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As one of the most effective techniques to control giant debris flow, the high-speed drainage structure is composed of both converge trough structure and high-speed drain trough structure.
速流结构是治理公路大型泥石流的有效技术类型，由汇流槽和速流槽组成。
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