Mainly used in geology, shallow water, oil, frozen construction well drilling in the supply of flushing fluid, medium for mud, water, can also be used as an infusion pump above.

主要用于地质、水源、浅层石油、冻结施工建井等钻进中供给冲洗液用，介质可为泥浆、清水等，亦可作为以上的输液泵。

youdao

The simple mechanical pump draws water from a shallow well or nearby stream or river for use in irrigation.

VOA: standard.2009.12.18