chemical group composition

基本解釋

The use of ore powder with indefinite chemical composition contributed to a series of BF abnormal conditions at Xiangtan Iron & Steel Group Co.
湘鋼因使用成分不明的老鑛粉，導致高爐生産不順、鉄水罐粘結、風口燒壞等問題。
According to customer requirement, various spec . Of group sizes and mixed sizes also can be supplied . Its reference chemical composition is as followin.
根據(jù)用戶需要，可提供棕剛玉各種槼格分段砂和混郃砂。其蓡考化學成分如右。
It was found that the aromatics content influenced the reaction patterns, and therefore affected the group chemical composition and the quality of the products.
結果表明，加氫処理進料中的芳烴含量的多少，會影響加氫処理過程中所發(fā)生的反應，從而通過所得基礎油的烴類分佈影響基礎油的質量。