This paper analyses and discusses the problems about variation of permanent packer string, and provides calculation examples.
文中对不能移动封隔器管柱变形受力的有关问题进行了分析、推导和讨论，并给出了算例。
This paper analyses and discusses the problems about variation of permanent packer string, and provides calculation examples.
文中对不能移动封隔器管柱变形受力的有关问题进行了分析、推导和讨论，并给出了算例。
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