pumping machine短语¹⁴⁴⁹⁷²⁺² 基本例句 扬水机; 泵 A new intelligent controller of energy conservation in a pumping machine is designed out which can judge indirectly the flowing capacity downhole through detecting the power of the electric machine. 设计了一种新型智能抽油机节能控制器，通过检测电机的功率间接判断井下供液能力的大小。 chemyq