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651 | 29:45duration 29 minutes 45 seconds
高中化學探究研習 (配以中文字幕)
ronson@hkecl.net
131 | 14:19duration 14 minutes 19 seconds
The Bright Future of Scientific Research (English…
The Bright Future of Scientific Research (English subtitles available)
220 | 14:42duration 14 minutes 42 seconds
Reaction Mechanisms of Selected Organic Reactions…
Reaction Mechanisms of Selected Organic Reactions (English subtitles available)
690 | 14:42duration 14 minutes 42 seconds
有機化學反應機理舉隅
開始和結束時間:
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