瓶装水也不保险,除非是蒸馏水。
可以用reverse osmosis filter。
所有跟帖:
• Do you know the working principle of reverse osmosis filter? -411- ♂ (2047 bytes) () 02/18/2011 postreply 21:38:19
• Do you know the working principle of reverse osmosis filter? -411- ♂ (2047 bytes) () 02/18/2011 postreply 21:38:19