Word · Frequency #27986
chlorofluorocarbon
含氯氟烃；氯氟碳化合物
a type of fluorocarbon that contains chlorine, formerly used as a refrigerant and as a propellant in aerosol cans
- 1.
Any of a class of organic compounds in which the hydrogen atoms of a hydrocarbon are replaced with those of chlorine and fluorine; formerly used as refrigerants and aerosol can propellants but withdrawn due to causing damage to the ozone layer.
一类有机化合物,其中烃的氢原子被氯和氟原子取代；曾用作制冷剂和气雾剂推进剂,因破坏臭氧层而停用。
一类有机化合物,其中烃的氢原子被氯和氟原子取代；曾用作制冷剂和气雾剂推进剂,因破坏臭氧层而停用。；<化>含氯氟烃(即破坏臭氧层的CFC)
In use
Many old refrigerators still contain chlorofluorocarbons that damage the ozone layer.
The use of chlorofluorocarbons in spray cans was banned in many countries.
Scientists measured the amount of chlorofluorocarbon released from the old air conditioner.
chlorofluorocarbons + plural verb
泛指这一类化学物质时，通常用复数形式 chlorofluorocarbons；作主语时，谓语动词用复数。
Chlorofluorocarbons damage the ozone layer.
含氯氟烃会破坏臭氧层。
chlorofluorocarbons + be used as + noun phrase
表示某物的用途时，常用被动结构 be used as，意为“被用作”。
Chlorofluorocarbons were formerly used as propellants in aerosol cans.
含氯氟烃以前被用作气溶胶喷雾罐中的推进剂。
be + a chlorofluorocarbon
Connections
Collocations
- chlorofluorocarbon emissions
- 含氯氟烃排放
- Chlorofluorocarbon emissions damage the ozone layer.含氯氟烃排放会破坏臭氧层。
- chlorofluorocarbon propellant
- 含氯氟烃推进剂
- The aerosol used chlorofluorocarbon propellants before they were banned.这种气雾剂在被禁止前使用含氯氟烃推进剂。
- chlorofluorocarbon refrigerant
- 含氯氟烃制冷剂
- Old refrigerators relied on chlorofluorocarbon refrigerants.旧冰箱使用含氯氟烃制冷剂。
- chlorofluorocarbon molecule
- 含氯氟烃分子
- One chlorofluorocarbon molecule can destroy thousands of ozone molecules.一个含氯氟烃分子可以破坏数千个臭氧分子。
- chlorofluorocarbon ban
- 含氯氟烃禁令
- The international chlorofluorocarbon ban has helped the ozone layer recover.
Learner notes
Memory Tip
记住CFC：C-氯、F-氟、C-碳，曾是制冷剂喷雾，破坏臭氧层，紫外线使氯原子释放。
Context & Register
语域：formal 常见场景：环保政策与公约、化学/工业技术资料、学术论文 该词属于正式、偏科技语体，通常出现在环保法规、化学文献或工业技术资料中；日常口语中更常用简称CFC。
Pronunciation & Spelling
以 -carbon 结尾的 carbon、hydrocarbon、fluorocarbon 在词尾拼写和读音 /kɑːbən/ 上相近，但它们的重音多在 -car- 上，而 chlorofluorocarbon 的重音在 -fluor- 上，因此不算严格押韵。注意 chloroform (/ˈklɔːrəfɔːm/) 虽以 chloro- 开头，但读音是 /ˈklɔːrə/，与目标词中的 /ˌklɔːrəʊ/ 不同；fluorine (/ˈflʊəriːn/) 和 fluorescence (/flʊəˈresəns/) 虽带 fluor- 拼写，读音也与目标词中的 /ˈflʊərəʊ/ 不同。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.