The main drive chain and the bearing chain divide the polished rod load into reverse pumping load and equilibrium load.

主传动链与承载链将悬点载荷分解为换向抽汲载荷与平衡载荷。

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The main drive chain and the bearing chain divide the polished rod load into reverse pumping load and equilibrium load.

主传动链与承载链将悬点载荷分解为换向抽汲载荷与平衡载荷。

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