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一種帶式升降機(jī)構(gòu),,里面那個(gè)帶輪是怎么實(shí)現(xiàn)帶的固定的,,如圖 |
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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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