4439| 6
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病患與殘疾人座椅移動裝置 |
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點評
叫平行機構,汽車雙A臂非平行也不是梯形,特例把你搞迷糊了
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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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