轴承坏了，应该是速度越高噪声越大

来源: soccer88 于 2016-05-08 22:28:41 [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.