• The working principle, structure and features are introduced in this paper. An analysis of calculation for lifting point movement, load and balance weight is introduce as well.

    介绍了直线电机驱动抽油机工作原理结构特点运动载荷平衡重的计算作了分析研究了修井作业时应注意的事项。

    youdao

  • The working principle, structure and features are introduced in this paper. An analysis of calculation for lifting point movement, load and balance weight is introduce as well.

    介绍了直线电机驱动抽油机工作原理结构特点运动载荷平衡重的计算作了分析研究了修井作业时应注意的事项。

    youdao

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