The pore volume of coke decreases with its strength index improved obviously, and the aryl organic compound in tar increased with alkene decreased.

 
  • 焦炭的孔體積減少,強度指標明顯改善;焦油中芳香烴含量增加,烯烴含量減少;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan