The bearing chain bears the equilibrium load to reduce the force on the main drive chain to a great degree.
承载链直接承受平衡载荷，可大幅度减小主传动链的受力。
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。
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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