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1.5噸的汽車把四個(gè)輪子增重共50公斤,簧下質(zhì)量增加50公斤,耗損怎么算? |
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Archiver|手機(jī)版|小黑屋|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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