... 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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fan-shaped horsehead long-stroke pumping unit 扇形驴头长冲程抽油机
type long stroke pumping unit 链式长冲程抽油机
chain-type long stroke pumping unit 链式长冲程抽油机
new-style and long-stroke pumping unit 新型抽油机
long-stroke chain pumping unit 长冲程链条抽油机
The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
The cylinder chain lower super long stroke pumping unit is a kind of up to date and high efficiency equipment.
圆柱链低矮式超长冲程抽油机是一种新型高效有杆采油设备。
The method of motion analysis of new type and long stroke pumping unit with vertical walking-beam and pylon was studied.
对新型长冲程抽油机——竖游梁塔架式抽油机的运动分析方法进行了研究，导出了该机悬点位移、速度及加速度的计算公式。
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