All
597 | 14:34duration 14 minutes 34 seconds
熱傳遞 (配以中、英文字幕)
jackieyclee edb-jackieyclee
241 | 15:22duration 15 minutes 22 seconds
電磁感應 (配以中、英文字幕)
156 | 14:34duration 14 minutes 34 seconds
Heat Transfer (Chinese and English subtitles…
Heat Transfer (Chinese and English subtitles available)
4,964 | 00:15duration 15 seconds
試想想:哪件衣服較保暖?(中文字幕可供選擇)
ronson@hkecl.net
2,488 | 15:04duration 15 minutes 4 seconds
All about Music: Beethoven (English subtitles…
All about Music: Beethoven (English subtitles available)
3,390 | 14:52duration 14 minutes 52 seconds
All about Music: Bach (English subtitles…
All about Music: Bach (English subtitles available)
81 | 15:22duration 15 minutes 22 seconds
Electromagnetic Induction (Chinese and English…
Electromagnetic Induction (Chinese and English subtitles available)
2,660 | 19:50duration 19 minutes 50 seconds
家庭用電
799 | 19:55duration 19 minutes 55 seconds
Electricity at Home (English subtitles available)
4,577 | 19:34duration 19 minutes 34 seconds
電和電路
1,146 | 19:29duration 19 minutes 29 seconds
Electricity and Circuits (English subtitles…
Electricity and Circuits (English subtitles available)
開始和結束時間:
開始時間: