Based on the results, the rationality of raising method is able to be evaluated and theoretical basis is provided for reliability design of derrick raising method.
所得到的计算结果可以评价井架起升方案的合理性，为满足井架起升工况的可靠性设计提供理论依据。
Based on the results, the rationality of raising method is able to be evaluated and theoretical basis is provided for reliability design of derrick raising method.
所得到的计算结果可以评价井架起升方案的合理性，为满足井架起升工况的可靠性设计提供理论依据。
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