The calculation models of judgment on the driving motor power curve and counterbalance adjustment of the pumping unit are established through the research of counterbalance of the pumping unit;

通过研究抽油机平衡原理，建立了电机功率曲线判断及调整抽油机平衡的计算模型；

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Instead, opponents argued, government management was required to counterbalance the power of large corporations.

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Correspondents say Moscow and Beijing are trying to counterbalance what they see as American military dominance.

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These opposing attempts to go at a 45-degree angle counterbalance into a 90-degree movement.

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