钻井泵的动力端是一组曲柄、连杆机构。

Drilling pump power end is a group of crank, link mechanism.

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这种液压驱动隔膜泵动力端与传统隔膜泵动力端相比，把传统动力端的曲柄连杆机构设计为液压缸驱动机构。

Compared with the driving force used in the traditional diaphragm pump, the hydraulic-driven replaced the crank linkage driven with a new type of hydraulic cylinder.

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这种液压驱动隔膜泵动力端与传统隔膜泵动力端相比，把传统动力端的曲柄连杆机构设计为液压缸驱动机构。

Compared with the driving force used in the traditional diaphragm pump, the hydraulic-driven replaced the crank linkage driven with a new type of hydraulic cylinder.

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