laughing gas
laughing gas 英 [ˈlæfɪŋ ɡæs] 美 [ˈlæfɪŋ ɡæs]
phrase. [无化] 笑气；[无化] 一氧化氮
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- phrase. [无化] 笑气；[无化] 一氧化氮
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1. OSLO (Reuters) - Thawing permafrost can release nitrous oxide, also known as laughing gas, a contributor to climate change that has been largely overlooked in the Arctic, a study showed on Sunday.
周日发表的一项研究显示北极永冻土壤解冻可以释放出氧化亚氮，俗称笑气。 这种温室气体对气候变化的贡献一般为世人所忽视。
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2. There, in a process called denitrification, microbes convert the nitrogen into nitrous oxide (also called laughing gas) and an inert gas called dinitrogen.
在那里，经称为脱氮的过程，微生物把氮转化为一氧化二氮（又称笑气）和一种称为二氮的惰性气体。
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3. Scientists have called for stricter controls on emissions of laughing gas, after discovering the common chemical poses a new threat to the recovering ozone layer.
在发现了笑气这种常见化学品对正在恢复的臭氧层构成新威胁之后，科学家们呼吁对笑气排放实行更为严格的管制。
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