... 常规井架 conventional derrick 起井架 derrick raising 井架火灾 pitframefire ...
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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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