• The guide rule and general plan to design a laboratorial test stand for drill pump valves are expounded, and the regulation and calculation of the system pressure of the stand are discussed.

    系统地阐述了钻井泵阀试验台设计指导思想设计方案的确定依据,介绍了试验台系统压力调节方法计算公式

    youdao

  • The guide rule and general plan to design a laboratorial test stand for drill pump valves are expounded, and the regulation and calculation of the system pressure of the stand are discussed.

    系统地阐述了钻井泵阀试验台设计指导思想设计方案的确定依据,介绍了试验台系统压力调节方法计算公式

    youdao

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