為什麼燈罩需要一個開口頂端?
回答 (3)
2016-06-04 4:02 am
個人因素
2016-06-03 10:48 am
散熱
2016-05-20 4:10 am
Hot air rises. The opening on the top is to allow hot air surrounding the light bulb to escape. This sets up a convection current to cool down the hot bulb.
收錄日期: 2021-04-18 14:49:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160519035329AALj7ok