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The counterbalance effect of a pumping unit can be analyzed and adjusted trustworthily by means of the power curve method.
利用功率曲线法能可靠地分析、判断抽油机的平衡状况。
youdao
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The counterbalance effect of a pumping unit can be analyzed and adjusted trustworthily by means of the power curve method.
利用功率曲线法能可靠地分析、判断抽油机的平衡状况。
youdao