點解暖蛋包過左一陣就唔暖?
回答 (2)
2010-01-27 5:08 am
✔ 最佳答案
因為暖蛋發出的熱量由化學品產生像中秋節的塋光棒。聴人說要買用電暖蛋好d但我不知那裏有
2010-01-26 10:33 pm
the heat given out by chemical reaction,,,,therefore ,when all of the materials are used up,no more heat energy given out!!
參考: my knowledge
收錄日期: 2021-04-13 17:05:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100126000051KK00589