• The pump is characterized by: 1. changing the mode of oil suction, i. e. making the plunger immersed in the viscous oil;

    特点:1.改变了普通泵进油方式稠油吸入泵腔变为浸入稠油;

    youdao

  • The pump is characterized by: 1. changing the mode of oil suction, i. e. making the plunger immersed in the viscous oil;

    特点:1.改变了普通泵进油方式稠油吸入泵腔变为浸入稠油;

    youdao

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进来说说原因吧 确定