碰墙试验毫无意义，现实中碰隔离墩的少见。

来源: 西风沙于 2016-04-19 20:47:03 [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.