采油工高级理论知

(907341)动态控制图是利用流压和( )的相关性，反映抽油机的生产动态。(1.0分)

发布于 2021-02-22 21:09:22

【单选题】
A 沉没度
B 泵效
C 电流
D 气油比

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色即是空 2023-02-22

你要求的次数愈多，你就越容易得到你要的东西，而且连带地也会得到更多乐趣。

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谦陌

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