1904| 5
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請(qǐng)教如圖所示的標(biāo)注 |
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點(diǎn)評(píng)
同意,。覺(jué)得是標(biāo)注錯(cuò)誤,沉孔12深度3,,3前面直徑符號(hào)取消掉,,直徑6鉆通孔
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