頻率,,,,和波長,,,和週期有何分別的???
PLZ,,HELP
phy問題一問nEed
2007-12-03 2:34 am
回答 (1)
收錄日期: 2021-04-13 14:37:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071202000051KK03624