[物理] 反向（反向），磁性稀薄設(shè)備 reversing device: 換向裝置reversing of magnetic field: 磁場倒向control device for reversing: 換向控制裝置double cam reversing device: 雙凸輪換向裝置non-reversing device: 防逆轉(zhuǎn)裝置，防反向裝置下載手機(jī)詞典可隨時隨地查詞查翻譯
