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欲設(shè)計(jì)一臺(tái)大中型機(jī)器,,哪一種結(jié)構(gòu)的機(jī)架更合理,? |
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),,浙公網(wǎng)安備33038202004372號(hào) )
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