All
4,403 | 24:53duration 24 minutes 53 seconds
Heat Transfer Processes (English subtitles…
Heat Transfer Processes (English subtitles available)
ronson@hkecl.net
600 | 14:34duration 14 minutes 34 seconds
熱傳遞 (配以中、英文字幕)
jackieyclee edb-jackieyclee
4,965 | 00:15duration 15 seconds
試想想:哪件衣服較保暖?(中文字幕可供選擇)
3,768 | 00:50duration 50 seconds
攝氏度和華氏度 (中文字幕可供選擇)
3,216 | 00:20duration 20 seconds
試想想:哪塊冰熔得較快?
2,517 | 00:48duration 48 seconds
解釋對流 (中文字幕可供選擇)
150 | 17:16duration 17 minutes 16 seconds
放射性衰變 (配以中、英文字幕)
157 | 14:34duration 14 minutes 34 seconds
Heat Transfer (Chinese and English subtitles…
Heat Transfer (Chinese and English subtitles available)
507 | 19:43duration 19 minutes 43 seconds
Climate Change - The Looming Crisis (I) (English…
Climate Change - The Looming Crisis (I) (English subtitles available)
1,418 | 19:35duration 19 minutes 35 seconds
Preventing and Extinguishing Fire
30,071 | 30:01duration 30 minutes 1 second
防火滅火保平安(消防安全家居篇) (中、英文字幕可供選擇)
1,155 | 19:59duration 19 minutes 59 seconds
全球氣溫分布 (中、英文字幕可供選擇)
5,643 | 19:45duration 19 minutes 45 seconds
全球變暖:迫在眉睫的危機(一) (中文字幕可供選擇)
12,558 | 19:30duration 19 minutes 30 seconds
防火與滅火
2,744 | 19:51duration 19 minutes 51 seconds
疾病與健康:非傳染病
377 | 19:55duration 19 minutes 55 seconds
Health and Diseases: Non-infectious Diseases…
Health and Diseases: Non-infectious Diseases (English subtitles available)
43 | 17:10duration 17 minutes 10 seconds
Radioactive Decay (Chinese and English subtitles…
Radioactive Decay (Chinese and English subtitles available)
34,031 | 14:45duration 14 minutes 45 seconds
安全的家
677 | 20:09duration 20 minutes 9 seconds
How Can You Mend A Broken Vase? (English…
How Can You Mend A Broken Vase? (English subtitles available)
632 | 20:04duration 20 minutes 4 seconds
Air and Burning (English subtitles available)
開始和結束時間:
開始時間: