回复：yes, the top one became black because the water level was too

来源: 2009999 于 2012-10-08 19:55:48 [档案] [旧帖] [给我悄悄话] 阅读数 : (44 bytes)

回答: yes, the top one became black because the water level was too lo 由 borisg 于 2012-10-08 17:18:25

请问，如何才能保证热水器中的水位一直是满的？

您的位置：文学城 » 论坛 » 投资理财 » 地主 » 回复：yes, the top one became black because the water level was too