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。

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Just as past generations fought wars over fossil fuels, mineral and metals-the raw resources of the Industrial Age.

就象过去的人类为争夺化石燃料、矿藏和金属这些工业时代的原料而大动干戈一样。

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