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電梯里的重錘結(jié)構(gòu),請教 |
點(diǎn)評(píng)
哈哈,明白人,俺修電梯那會(huì)兒大家把那個(gè)叫對(duì)重(特種作業(yè)手冊也這么寫)
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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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