2254| 9
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讀研課題:仿造植物的氣孔,測試蒸騰速率。 |
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點評
鉆孔的質(zhì)量如何,與激光打孔哪個比較好?
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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