软水机就是把水里的钙跟镁转化成钠。
所有跟帖:
• Ca and Mg can't be changed to na. -StayCalmStayCool- ♀ (0 bytes) () 12/21/2011 postreply 14:41:36
• it's exchange, not good to enviroment. -StayCalmStayCool- ♀ (0 bytes) () 12/21/2011 postreply 14:43:33
• 离子交换,工业上都这么干的。 -帅帅娘- ♀ (0 bytes) () 12/21/2011 postreply 14:48:42