3916| 3
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已知碳纖材料的壓力屈服強度,如何換算為拉力,沖擊力等強度的值? |
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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