(3)是对的，虚焊或接线内部断裂不容易找的，要凭经验加运气。

来源: π 于 2007-09-23 13:28:19 [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.