plunger

plunger

[ˈplʌndʒə(r)]

n.手压皮碗泵;撞针杆;活塞;柱跳水者，潜水者;

复数： plungers

英文例句/中文翻译：

1、

When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.

当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。

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2、

The wellhead throttle valve is made up of nozzle, plunger-shaped spool, throttle value, valve body and valve rod, etc.

该井口节流阀由喷嘴、柱塞形阀芯、节流轴、阀体、阀杆等组成。

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3、

Engin oil flow in air cylinder Application of the Combined Plunger-type Cylinder

汽缸活塞内润滑油流动的数值模拟柱塞缸组合的应用

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