Owing to the pump structure and side clearance between screw, it can transport non-lubricative medium.

由于这种泵的结构和螺杆间存在的侧间隙，它可以输送非润滑性介质。

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Owing to the pump structure and side clearance between screw, it can transport non-lubricative medium.

由于这种泵的结构和螺杆间存在的侧间隙，它可以输送非润滑性介质。

youdao