The X ray diffraction patterns showed that they were of higher degree of crystalline order, and fibril particles with an avera...

 
  • 結果表明,乳液法合成聚苯胺具有較高的特性粘度,溶解性,耐熱性和結晶度;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan