Do you know the working principle of reverse osmosis filter?

来源: 411 于 2011-02-18 21:38:19 [] [旧帖] [给我悄悄话] 本文已被阅读： 次 (2047 bytes)
回答: 可以用reverse osmosis filter。 由 viewfinder 于 2011-02-18 13:14:10

Reverse osmosis was originally created by printing industry to remove minerals in the water. Do some google research, you will find that it’s not suitable for human consumption.

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