裝一個多少錢？tester 可以測離子濃度，無法測其它汙染物（比如有機汙染物）。

來源: 欲千北於 2016-06-07 16:53:49 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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