整个运动是“伪周期”的（除了对于一些特殊类型的中心力，譬如平方反比力以及弹性恢复力

来源: marketreflections 于 2011-05-11 14:15:21 [博客] [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.