估計在卸螺母的時候用，比較接近標定扭矩。螺母卸過之後螺紋是有磨損和形變的，記號可能還不如手感。

來源: Shubin 於 2025-11-24 10:02:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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