drill pipe pin end的意思|示意
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钻杆销端
drill pipe pin end的网络常见释义
钻杆公扣 液压动力大钳石油基础词汇 ... 反轮回 reverse circulation 钻杆公扣 drillpipe pin end 钻压 weight on bit ...
drill pipe pin end相关例句
Its upper end is drill pipe box or union, the nether end is casing pin. It is a crossover with hollow inside.
它是个上端为钻杆母扣或者由壬，下端为套管公扣，内空心的转换接头。