• The results show that the improvement of the slant improved oil-well pump 's internal structure and the optimization of the materials are the main factors to improve pump efficiency.

    研究结果表明改进型斜井内部结构改进材质优选泵效提高主要因素

    youdao

  • The results show that the improvement of the slant improved oil-well pump 's internal structure and the optimization of the materials are the main factors to improve pump efficiency.

    研究结果表明改进型斜井内部结构改进材质优选泵效提高主要因素

    youdao

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