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出于好奇,服裝防盜扣的工作原理是什么? |
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點評
環形磁鐵,吸起鋼珠脫離凹槽。
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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