10097| 24
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制圖教材上說對稱結(jié)構(gòu)的尺寸不能只標(biāo)注一半,為什么? |
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點(diǎn)評
加上未注公差呢
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點(diǎn)評
請問你的零件中心在哪,言之鑿鑿的對中心線有什么誤解
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