• In this paper, the compositions, working principles and its advantages and shortcomings of automatic control system for a single-well pumping installation are presented.

    本文介绍单井自动控制抽油装置组成工作原理及其优缺点

    youdao

  • In this paper, the compositions, working principles and its advantages and shortcomings of automatic control system for a single-well pumping installation are presented.

    本文介绍单井自动控制抽油装置组成工作原理及其优缺点

    youdao

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