10ms^-1= kmh6-1
10kmh^-1= ms^-1
10kgm^2=gcm^-3
10gcm^-3=kgm^-3
收錄日期: 2021-04-23 23:05:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080912000051KK01457