Sumps and drains.

污水坑和下水道。

Flows in open pump sumps are complex movements with free surface.

式水泵吸水池内流动是具有自由表面的复杂流动。

Sumps use the weight of water and gravity to help soil's natural percolation.

污水坑使用水和重力的重量，以帮助土的自然渗透。

Areas such as drains, sumps, pump Wells, or dead paint lines may collect pigment.

象排出口，储槽，泵井或空油漆管路等部位都会有颜料汇集。

The screw pressure filter is a kind of dewatering machine for coal slime. It is mainly used in coal preparation plants, underground sumps etc.

螺旋压滤机是一种煤泥脱水处理设备，主要用于洗煤厂、井下水仓等地。