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critical speed of shafting

基本解釋

Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oil film vibration.
認(rèn)爲(wèi)發(fā)電機(jī)轉(zhuǎn)速達(dá)到兩倍臨界轉(zhuǎn)速附近，軸系發(fā)生了油膜振蕩。

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