5640| 16
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3*45度的倒角中的3指的是什么? |
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點(diǎn)評(píng)
請(qǐng)教如果不是45度的倒角又該怎么標(biāo)示呢?
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點(diǎn)評(píng)
不對(duì)的,要誤人子弟的,沒(méi)有把握不能隨便下結(jié)論。
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