当然有了。他是从上面的橡皮管放水，上游的Thermostat 自然会打开的。

来源: 周老大于 2016-05-08 01:10:55 [博客] [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.