12213| 12
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一個氣路經過三通接頭分為兩個氣路后,壓力會減小嗎 |
點評
正解
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點評
真搞懂這句話的估計有一半人就不錯啦
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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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