Word · Frequency #6287
nitrogen
一种常见的非金属元素，是无色无臭无味的惰性气体，约占大气的78%，存在于所有生物组织中
核心释义
a common nonmetallic element that is a colorless, odorless, tasteless inert gas making up about 78% of the atmosphere and present in all living tissues
- 1.
化学元素(符号N),原子序数7,原子量14.0067。无色无味气体
The chemical element (symbol N) with an atomic number of 7 and atomic weight of 14.0067. It is a colorless and odorless gas.
- 2.
一种常见的非金属元素,通常为无色无味无味的惰性双原子气体；占大气体积的78%；是所有生物组织的组成部分
a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
- 3.
分子氮(双原子氮),N2,室温下为无色无味气体,占空气的78%
Molecular nitrogen (diatomic nitrogen), N2, a colorless, odorless gas at room temperature, which constitutes most of air (78% of it).
- 4.
化学式中的特定氮原子或氮的特定同位素
A specific nitrogen atom within a chemical formula, or a specific isotope of nitrogen.
化学元素(符号N),原子序数7,原子量14.0067。无色无味气体；一种常见的非金属元素,通常为无色无味无味的惰性双原子气体；占大气体积的78%；是所有生物组织的组成部分；分子氮(双原子氮),N2,室温下为无色无味气体,占空气的78%；化学式中的特定氮原子或氮的特定同位素；氮；[化] 氮N-2
用法In use
Plants require nitrogen to produce proteins and grow properly.
用法提示：句中'nitrogen'作名词，指氮元素，用于描述植物营养需求。
The industrial process uses liquid nitrogen to rapidly freeze food products.
用法提示：句中'nitrogen'作名词，指氮气，用于液化状态下的工业应用。
Nitrogen makes up about 78 percent of Earth's atmosphere.
用法提示：句中'nitrogen'作名词，指氮元素，用于描述大气成分。
Nitrogen + be + [adjective/past participle]
Nitrogen is found in proteins.
氮存在于蛋白质中。
[subject] + contain/need/require + nitrogen
相关词与表达Connections
搭配Collocations
- atmospheric nitrogen
- 大气氮
- Atmospheric nitrogen is converted into a usable form by certain bacteria.大气氮通过某些细菌转化为可利用的形式。
- liquid nitrogen
- 液态氮
- Liquid nitrogen is used in cryogenics and food preservation.液态氮用于低温学和食品保存。
- nitrogen cycle
- 氮循环
- The nitrogen cycle is essential for life on Earth.氮循环对地球上的生命至关重要。
- nitrogen fixation
- 固氮作用
- Nitrogen fixation is a key process in agriculture.固氮作用是农业中的关键过程。
- nitrogen fertilizer
学习提示Learner notes
记忆技巧Memory Tip
谐音'耐吹真'，想象耐着性子吹出占空气78%的氮气。
语境与语域Context & Register
中性，常用于科学、技术及教育语境，日常对话中也较常见，但整体偏正式。
语法说明Grammar Note
通常为不可数名词，复数形式罕见
发音与拼写Pronunciation & Spelling
All listed words end in /dʒən/ but differ in stress and preceding sounds, so they are not perfect rhymes with 'nitrogen'. Be cautious not to confuse with words like 'nitride' (/naɪtraɪd/) or 'nitrite' (/naɪtraɪt/).
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
一起学习词形Learn the forms together
Dictionary facts from ECDICT, WIKTIONARY.