看貼不認真, 他說 "聽到異常的聲音" ,沒說"警告聲“

來源: 2009-05-01 06:23:02 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

異常的聲means the rotor surface has touched padback - metal to metal.