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關注：1
2013-05-23 12:21
求翻譯：could be quantified by the disappearance of the distinct permanganate absorbance band located in the range of wavelengths 490 to 590 nm是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
could be quantified by the disappearance of the distinct permanganate absorbance band located in the range of wavelengths 490 to 590 nm
問題補充： |
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