typo: < 100 nm is nano

來源: Maddie'sMom 於 2012-09-08 08:36:00 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: material particles less than 100 um are considered nano. 由 Maddie'sMom 於 2012-09-08 08:34:46

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