Nitrous oxide, better known as the dental anaesthetic "laughing gas", has replaced CFCs as the most potent destroyer of ozone in the upper atmosphere, a study has shown.

一项研究表明，以牙科麻醉剂“笑气”之名著称的氧化亚氮，已取代氟氯烃，成为上层大气中的臭氧最强有力的破坏物。

youdao

Nitrous oxide, better known as the dental anaesthetic "laughing gas", has replaced CFCs as the most potent destroyer of ozone in the upper atmosphere, a study has shown.

一项研究表明，以牙科麻醉剂“笑气”之名著称的氧化亚氮，已取代氟氯烃，成为上层大气中的臭氧最强有力的破坏物。

youdao