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酬勞5元,誰會做下面的課后習題:試設計銑床中的一對標準直齒圓柱齒輪傳動。 |
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點評
還是前輩出色,我司決定放棄競標👍
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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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