软水机就是把水里的钙跟镁转化成钠。

回答: 软水机真的不好么?闲看庭前2011-12-21 14:03:20

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Ca and Mg can't be changed to na. -StayCalmStayCool- 给 StayCalmStayCool 发送悄悄话 (0 bytes) () 12/21/2011 postreply 14:41:36

it's exchange, not good to enviroment. -StayCalmStayCool- 给 StayCalmStayCool 发送悄悄话 (0 bytes) () 12/21/2011 postreply 14:43:33

离子交换,工业上都这么干的。 -帅帅娘- 给 帅帅娘 发送悄悄话 帅帅娘 的博客首页 (0 bytes) () 12/21/2011 postreply 14:48:42

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