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第三章圖 已經(jīng)給出了,。#4 screw。裝配進(jìn)去,, |
2011ayoon 發(fā)表于 2020-1-15 10:14 ![]() |
4-40UNC 表示公稱尺寸是4號(hào)(不是4英寸),大徑是0.112英寸,牙數(shù)是40個(gè)的美制粗牙螺紋 |
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