因為同一個zone, 一條輸水管，當攪動其中一個噴頭，造成管內水壓顫動

来源: 松涛孤雁于 2019-08-08 16:29:03 [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.