... pump priming 灌泵 pump rod joint 抽油杆接头 pump rod 拉杆 ...
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pump rod joint
泵杆接头
以上为机器翻译结果，长、整句建议使用 人工翻译 。
A pumping rod housing lock joint of a screw pump is primarily used to resolve the problem that the current screw pumping rod joint is easy to release.
一种螺杆泵抽油杆防脱扣接头主要解决现有螺杆泵抽油杆接头易脱扣问题。
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