chemical group composition

基本解释

The use of ore powder with indefinite chemical composition contributed to a series of BF abnormal conditions at Xiangtan Iron & Steel Group Co.
湘钢因使用成分不明的老矿粉，导致高炉生产不顺、铁水罐粘结、风口烧坏等问题。
According to customer requirement, various spec . Of group sizes and mixed sizes also can be supplied . Its reference chemical composition is as followin.
根据用户需要，可提供棕刚玉各种规格分段砂和混合砂。其参考化学成分如右。
It was found that the aromatics content influenced the reaction patterns, and therefore affected the group chemical composition and the quality of the products.
结果表明，加氢处理进料中的芳烃含量的多少，会影响加氢处理过程中所发生的反应，从而通过所得基础油的烃类分布影响基础油的质量。