他认为碳最初和硫酸钙反应生成硫化钙。
He postulated that the carbon reacts initially with the sulfate to form calcium sulfide.
本发明涉及一种用磷石膏或其它石膏生产硫化钙的新方法。
This invention relates to a novel method for producing calcium sulfide from phosphogypsum or other gypsum.
这种黄色的物质叫做脱水硫化钙，通常是石膏的一种组成部分。
The yellow substance was gypsum, or calcium sulfate dehydrate, a common component of plaster.
高温燃烧使得炭灰(富含硅和铝)和硫化钙熔为一体，从而产生固体残渣，从锅炉底部溢出。
The high combustion temperatures melt together the coal ash (largely silica and alumna) and calcium sulfide solids to form an inert slag that drains from the bottom of the boiler.
改善硫化锰和氟化钙的分布，将会改善切削加工性。
To improve the homogeneity of manganese sulfide and calcium fluoride, the machinability could be enhanced.
改善硫化锰和氟化钙的分布，将会改善切削加工性。
To improve the homogeneity of manganese sulfide and calcium fluoride, the machinability could be enhanced.
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