Centrifugal pump drainage 离心泵排水
Compressed air pump drainage 压气泵排水
drainage pump 疏水泵
mine drainage pump 矿井排水泵 ; 矿井排抽水机
tank drainage pump 罐柜抽泄泵
groundwater drainage pump 地下水排水泵
cellar drainage pump 地下室排水泵
Regulating valves are essential components in the centrifugal pump drainage system.
在离心式水泵排水系统中，调节阀门是必不可少的元件之一。
This kind of pump drainage irrigation equipment can help achieve the irrigation of terraced fields.
利用这种提灌设备就可以解决梯田的灌溉问题了。
Pump water spring, the rural life of the main drainage and irrigation machinery summer.
水泵是农村生活用水和春种夏播的主要排灌机械。
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