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Crank mechanism design provides strong pressure with little loss;
曲肘机构设计，压缩空气消耗少，压力强劲。
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Drilling pump power end is a group of crank, link mechanism.
钻井泵的动力端是一组曲柄、连杆机构。
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Drilling pump power end is a group of crank, link mechanism.
钻井泵的动力端是一组曲柄、连杆机构。
youdao