... oil-level indicator 油面指示器 oil-level meter 油位表 oil-line pump 输油管泵 ...
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... 油位塞：fual level line plug 油位计：oil-level meter 油位观察镜：inspection glass for oil level ...
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It is a meter to measuring liquid level of oil, oil-water interface and water cut in oil in storage tank etc.
它是以短波吸收为机理，测量油罐中原油的液位、油水界面以及油中含水率等参数的一种仪器。
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