1、

Slack adjuster worm plunger rod that moves or is moved by a piston.

减速调整器蜗杆柱塞驱动活塞或被活塞驱动的连杆。

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2、

a plunger rod assembly extending within the needle cylinder and comprising an elongated body with a rotary longitudinal shaft;

柱塞杆组件,其在所述针筒内延伸,且包括具有旋转纵轴的细长本体;

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3、

the pump bodies are piston cylinders, and the plunger rod drives plungers to move in the pump bodies.

泵体是活塞筒,柱塞杆则驱动柱塞在泵体内运动。

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4、

leaking plunger rod, side cover, rear cover, or crankshaft oil seals or o-rings,

柱塞杆,侧盖,后罩,或机轴油封或O型环泄露,

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5、

In this paper discrete optimization is applied to a sucker-rod pumping for seeking optimum parameters, such as length of stroke, pumping speed, plunger diameter and pump depth.

运用离散最优化的理论和方法优选了有杆泵抽油井的抽汲参数,包括:冲程、冲次、泵径和下泵深度。

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6、

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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7、

Mechanism and application of long plunger sand control sucker rod pump

长柱塞式防砂抽油泵原理与应用

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8、

Sucker rod is a power transmission component in rod pumping oil system, driving pump plunger up and down for reciprocating motion in oil Wells work, which carries alternating load.

抽油杆是有杆抽油系统中传递动力的部件,在油井工作中带动泵柱塞作上下往复运动,承受交变载荷。

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