我试过，排气管在水下三、四寸，可以开很长时间。

来源: 忧乐于 2013-10-04 06:37:15 [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.