... crank pumping unit 前置式游梁抽油机 ; 单拐多连杆抽油设备 long stroke pumping unit 长冲程抽油机 remote pumping unit 遥控抽油装置 ...
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曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
齿轮式无游梁长冲程抽油机为机械换向台架式滚筒抽油机。
The pumping unit described in this article consists of a frame-mounted mechanical reversing drum.
复合天轮式长冲程抽油机主架由四柱扁框架、两个悬臂梁和两个后支腿组成。
The framework of the long-stroke pumping unit with compound crown sheave consists of a flat frame with four columns, two cantilever beams and two back legs.
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