a=?v/?t; ?t=1/Frequency => a=?vFrequency => F=m?vFequency

来源: 选民于 2024-04-19 16:23:17 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.