... multi throw crank pump 多缸曲柄泵 three throw crank pump 三缸曲柄泵 ; 三缸曲轴弯曲部分泵 no crank pump 无曲柄泵 ...
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... three screw pump 三螺杆泵; 三螺杆式泵 three throw crank pump 三缸曲柄泵; 三拐曲柄泵 three throw plunger pump 三联柱塞泵 ...
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