中英▼

  • 井下套管阀就是为了取代强行起下钻装置而研制的。

    The Downhole-Deployment-Valve is designed for the purpose of replacing the need of forced tripping work.

    youdao

  • 井下套管阀就是为了取代强行起下钻装置而研制的。

    The Downhole-Deployment-Valve is designed for the purpose of replacing the need of forced tripping work.

    youdao

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感谢您的反馈，我们会尽快进行适当修改！
进来说说原因吧 确定