deep sluice
... bottom fraction ==> 筛底粉 bottom gate ==> 底部闸门,底浇口,底孔闸门,底注式浇口,底注式浇注系统 bottom gating ==> 底注式浇注系统 ...
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为了让泥沙和水流一起通过大坝，工程的设计师们在大坝底部设计了一系列的水闸门。
In order to flush sediment through, project engineers have designeda series of openings known as sluice gates at the base of the dam.
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