[U]〈化〉氮 a gas that is a simple substance, without color or smell, that forms most of the Earth's air
英英释义
Noun
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
组词搭配
形容词+～
colorless nitrogen无色气体
～+名词
nitrogen dioxide二氧化氮
nitrogen fixation固氮法
nitrogen oxide氧化氮
例句
用作名词(n.)
Air consists chiefly of nitrogen.空气主要由氮气组成。
The lamp is full of gaseous nitrogen.灯里充满了气体氮。
Nitrogen is a gas without colour or smell.氮是一种无色无臭的气体。
Nitrogen forms most of the Earth's air.地球上空气的大部分成分是氮气。
If it were not for oxygen and nitrogen in the air, no man could live on the earth.大气中如果没有氧和氮，人就无法生存于地球了。
