carbon dioxide二氧化碳
titanium dioxide二氧化钛
4.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。
6.Emitting too much greenhouse gases such as carbon dioxide lies at the root of global warming.
排放过多温室气体,如二氧化碳,是全球变暖的根本原因。
7.When iron became highly oxidized, so did diamonds; that is, they vaporized into carbon dioxide.
当铁被高度氧化时,钻石也被高度氧化;也就是说,它们蒸发成二氧化碳。