It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores that contain sulfur.
它源自矿物燃料(煤和石油)的燃烧以及对含有硫磺的矿物的冶炼。
2
The effect of mineral on conversion of coal and sulfur with different forms in Yima during pyrolysis and hydropyrolysis in a fixed bed reactor was studied.
在加压固定床上研究了矿物质对义马煤热解和加氢热解产物分布规律以及不同形态硫转化的影响。
3
Inorganic mineral elements in tea are about 27 species, including phosphorus, potassium, sulfur, magnesium, manganese, fluoride, aluminum, calcium, sodium, iron, copper, zinc, selenium and other.