That the thread endures high alternate stress is the first cause of failure of thread joint.

螺纹部位承受高的交变应力，是导致螺纹联接螺纹失效的主要原因。

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That the thread endures high alternate stress is the first cause of failure of thread joint.

螺纹部位承受高的交变应力，是导致螺纹联接螺纹失效的主要原因。

youdao