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。

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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。

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For effective desulfurization and deashing of high-sulfur coal with its use of usual magnetic separation device, a surface magnetism enhancement of coal-derived minerals is a new key technology.

煤系矿物的表面磁性强化是利用通常磁选设备实现高硫煤脱硫脱灰的新型关键技术。

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What it does have (and must have, as a starting point for the diamonds) is lots of coal: dirty, high-sulfur-content coal, which feeds 75% of the country's primary energy requirements.

FORBES: Hitting The Gas