樓主: 雅燃
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老師拿的西屋電氣公司的圖紙,這個(gè)三視圖是什么? |
點(diǎn)評(píng)
1/4x1/4x1.5角鋼,1/4寸是角鋼邊長(zhǎng),1.5是厚度,angle這里是角鋼的意思
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