除了实验室里做科研的人用到这种过滤膜，生活中没有人这样做的。

来源: 御用文人于 2016-06-08 11:48:23 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.