In this paper,the authors improved and developed the practical formulas in the document [1] ,and discussed the method and principle for checking the integrate stability of drilling mast when there are primary defects.
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本文以文献[1]为基础,通过对实用计算公式的适当修改和扩充,讨论了存在初始缺陷时,校核井架总体稳定性的方法和原理。
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