The purpose of this procedure is to provide for a system, instructions and to identify the procedural controls associated with inspection, non destructive examination and test activities.

本程序确定了检查、无损检验和试验相关的程序控制，并提出了一套体系和指示要求。

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Trapeziectomy is, therefore, the central element of arthroplasty, but it is a destructive surgical procedure that, to some extent, shortens the first ray and reduces the pinch strength of the thumb.

因此，大多角骨切除术成为关节成形术中的中心因素，但这是个破坏性外科过程，在某种程度上缩短了第一列骨长度，减小了拇指的捏力。

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