magnet plunger
常見(jiàn)例句
- Under the action of variation magnetic field, the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground.
通過(guò)動(dòng)力電纜給井下直線電機(jī)供電后產(chǎn)生交變磁場(chǎng)，永磁體動(dòng)子在交變磁場(chǎng)作用下帶動(dòng)泵柱塞上下往復(fù)運(yùn)動(dòng)，從而達(dá)到舉升抽油的目的。
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