Word · Frequency #28157
ethylene
乙烯
核心释义
The simplest alkene; a colorless, flammable gas (C2H4) used in making many chemicals and sometimes as an anesthetic.
- 1.
有机化合物乙烯的通称；最简单的烯烃,化学式C2H4,常温常压下为无色气态烃。
The common name for the organic chemical compound ethene. The simplest alkene, a colorless gaseous (at room temperature and pressure) hydrocarbon with the chemical formula C2H4.
- 2.
一种易燃无色气态烯烃；从石油和天然气中获得,用于制造许多其他化学品；有时用作麻醉剂
a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
- 3.
由乙烷衍生的二价基团。
The divalent radical derived from ethane.
亚乙基；有机化合物乙烯的通称；最简单的烯烃,化学式C2H4,常温常压下为无色气态烃。；一种易燃无色气态烯烃；从石油和天然气中获得,用于制造许多其他化学品；有时用作麻醉剂；由乙烷衍生的二价基团。；乙烯；[化] 乙烯; 1
用法In use
The factory uses ethylene to produce plastics.
用法提示：名词作宾语，表示乙烯这种物质被用于生产。
Ethylene is an important industrial chemical.
用法提示：名词作主语，表示乙烯的类别属性。
Scientists are studying the effects of ethylene on fruit ripening.
用法提示：名词作介词宾语，表示乙烯在生物过程中的作用。
ethylene is [noun]
Ethylene is a flammable gas.
乙烯是一种易燃气体。
ethylene is used in [noun phrase]
Ethylene is used in the manufacturing of plastics.
相关词与表达Connections
搭配Collocations
- ethylene gas
- 乙烯气体
- Ethylene gas is released by fruits to speed up ripening.水果释放乙烯气体以加速成熟。
- ethylene production
- 乙烯生产
- The new plant will double the country’s ethylene production.新工厂将使该国的乙烯产量翻一番。
- ethylene monomer
- 乙烯单体
- Ethylene monomer is the building block of polyethylene.乙烯单体是聚乙烯的构成单元。
- ethylene molecule
- 乙烯分子
- Each ethylene molecule contains two carbon atoms and four hydrogen atoms.每个乙烯分子含有两个碳原子和四个氢原子。
- ethylene content
学习提示Learner notes
记忆技巧Memory Tip
记忆：ethylene 词尾 -ene 表示烯烃，ethylene 就是最简单的乙烯（C2H4），联想‘乙’字头的烯。
语境与语域Context & Register
语域：formal 常见场景：化学教材、石油化工、医学麻醉 该词属于化学专业术语，多用于科技文献、化工生产和医学等正式场合；日常对话中很少出现。
语法说明Grammar Note
不可数名词
发音与拼写Pronunciation & Spelling
methylene 和 polyethylene 与 ethylene 押韵（重读元音 /ɛ/ 及其后的 /θəlin/ 相同）。benzene、toluene、xylene、propylene 拼写相似但读音不同，不押韵。
一起学习词形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.