The calculated results show that more than 25 percent energy can be saved by using this method, which is much greater than 13 percent energy-saving obtained by modif…

试算表明，采用这种方法，节能效果在25％以上，比现有常规型游梁式抽油机改造为偏置相位抽油机其节能效果为13％有较大幅度提高。

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The calculated results show that more than 25 percent energy can be saved by using this method, which is much greater than 13 percent energy-saving obtained by modif…

试算表明，采用这种方法，节能效果在25％以上，比现有常规型游梁式抽油机改造为偏置相位抽油机其节能效果为13％有较大幅度提高。

youdao