The infrared spectrum of the grafted down-powder showed that the content of carbonyl and S O bond increase but the content of CH2 bond decrease.

 
  • 紅外光譜圖顯示接枝后羽絨粉體上羰基和S-O鍵的數量增加,-CH2-鍵的數量下降。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan