The emission of sulfur dioxide when high-sulfur coal is burned is restricted by law.
高硫煤燃烧过程中的二氧化硫的排放是受到法律限制的。
2
The results manifested that the floatation effect of BET is better than that of other common floatation reagents and has a higher selectivity especially in high-sulfur coal sample floatation.
实验结果表明，BET的浮选效果要优于普通煤用浮选药剂，尤其是用于高硫煤的浮选时，它有很强的选择性。
3
The highsulfur content of its sour crudes makes it different to yield the light products that meet the increasingly stringent environment standards.