載入中... 相關課程 Back 5-1觀念03垂直紙面之磁場、電流的表示法 登入觀看 ⇐ Use this menu to view and help create subtitles for this video in many different languages. You'll probably want to hide YouTube's captions if using these subtitles. 5-1觀念03垂直紙面之磁場、電流的表示法 上傳學習單 下載學習單