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怎么計算工業(yè)貨架立柱、橫梁的承重力學 |
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點評
感覺就貨架而已,應該有行業(yè)規(guī)則的
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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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