nitrogen
nitrogen
英[ˈnaɪtrədʒən]美[ˈnaɪtrədʒən]
n.[化]氮,氮气;
形容词:nitrogenous;
例句
Every tonne of coal contains,on average,30 kilograms of nitrogen.每吨煤平均含30公斤氮。
Nitrogen is a gas without colour or smell.氮是一种无色无臭的气体。
Urea is commonly used as the source of nitrogen in foliage sprays.尿素作为氮素给源普遍地应用于叶面喷布.
Nodule bacteria are very good at biological nitrogen fixation.根瘤菌是生物固氮的能手.
The effect of nitrogen can be overcome by sheathing the flame in argon.氮的影响则可以通过用氩气包覆火焰而予以克服.
These bacteria break down nitrogen from the air into a form that legumes can use.这些细菌能把空气中的氮气分解成豆科植物可利用的形式.
Will you sunder nitrogen from air?你能从空气中把氮气分离出来 吗 ?
Nitrogen trifluoride ( NF 3 ) is a toxic, colorless, odorless, nonflammable, oxidizing compressed gas.三氟化氮 ( NF3 ) 是有* 、 无色 、 无嗅 、 不可燃的氧化性压缩气体.
The plant requires nitrogen in order to make proteins.植物需要氮以便制造蛋白质.
Every tonne of coal contains, on average, 30 kilograms of nitrogen.每吨煤平均含30公斤氮.
同义词
nitrogen的同义词之:
air柯林斯高阶英汉双解学习词典释义
N-UNCOUNT
氮;氮气
Nitrogen is a colourless element that has no smell and is usually found as a gas. It forms about 78% of the earth's atmosphere, and is found in all living things.
英汉词典释义
n.
〈化〉氮
Nitrogen is a gas without colour or smell.氮是一种无色无臭的气体。英英词典释义
Noun
1. 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
行业词典
医学: 氮:无色气体元素,游离于空气中,符号为N;比重0.9713,原子序数7,原子量14.007。为大气的成分,占空气的4/5。化学上几乎为惰性,但结合后可形成硝酸与氨。对生物,氮很重要,是蛋白与核酸的成分,因而存在于所有活细胞内。它是在呼吸中无用的气体;虽无*性,但只吸入氮气却可致死,因为缺少氧气,它能溶于血及体液内,当大气压降低时,即以气泡游离出来,能造成严重症状。见sickness项下的decompression sickness;〔NF〕氮气:按体积含N2量不少于99%,在药物制剂中用来替代空气;
机械: 氮氧化物分析仪;nitrogen-oxide ana-lyzer 分析大气中一氧化氮、二氧化氮等氮氧化物的仪器。;