stage pressure ratio
... stage recorder 自记式水位仪 stage pressure ratio 级压力比 stage temperature 级温,段温度 ...
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级的总压力比 [机] overall stage pressure ratio
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对于经常工作于较高压力下的齿轮泵，其工作压力应比泵的额定压力低1 ~ 2个压力级。
For often work under high pressure gear pump, the working pressure shall be lower than the rated pressure of the pump 1 ~ 2 pressure level.
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