nitrogen

nitrogen音标

英 [ˈnaɪtrədʒən]

美 [ˈnaɪtrədʒən]

nitrogen基本释义

n.氮

nitrogen用法及例句

n.(名词)

【化】氮气，氮（元素符号N）

n.(名词)

[U]〈化〉氮 a gas that is a simple substance, without color or smell, that forms most of the Earth's air

noun

1. a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gasconstitutes 78 percent of the atmosphere by volumea constituent of all living tissues

Synonym: Natomic number 7

1. 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.

1. nitrogen是什么意思

1. 氮气：我司生产销售变压吸附(PSA)制氮机.制氮机配有空气缓冲罐,氮气缓冲罐.还配有两个吸附塔,双吸附塔并联交替进行吸附,一塔工作一塔再生,连续产氮.压缩空气(AIR) 氧气(OXYGEN)放空 氮气(NITROGEN)收集 .规格多种多样,欢迎来电咨询.

2. 氮元素：H-1含碳量极低,以氮元素(Nitrogen)代替大部分的碳,因此生锈的主因就是钢铁中的碳遇水成为氧化物. 使用氮元素同时可保有绝佳硬度与韧渡. Spyderco水中救援刀,长久以来就深受航海员、急救人员的喜爱,现在更加强了其防锈能力,

3. 总氮：Nitrite 亚硝酸盐 | Nitrogen 总氮 | Oxygen 溶解氧

常用例句

词汇搭配

用作名词(n.)

Nitrogen is a gas without color or smell.氮是一种无色无臭的气体。

用作名词 (n.)

colorless nitrogen无色气体

nitrogen dioxide二氧化氮

nitrogen fixation固氮法

nitrogen oxide氧化氮

近义词

临近词

n字母n

air空气

nitrogen arc

nitrogen lag

nitrogenous

nitrogenfree

nitrogenise

nitrogenase

nitrogen gas

Nitrogen use

nix

nitrogenize

nitrite

nitrogen ion

相关列句

Nitrogen-oxide emissions during the cruising portions of the flight fell by around a quarter.(飞行中巡航部分的氮氧化物的排放量下降了四分之一左右。)

Agricultural run-off and pollution from power plants are adding extra nitrogen to many bogs in North America.(农业排水和来自发电厂的污染给北美的许多沼泽增加了额外的氮。)

Since nitrogen is four fifths of the air we breathe, they are surprisingly optimistic about raising the temperature on Mars and believe it could be done in hundred years.(由于氮占我们呼吸的空气的五分之四，他们对提高火星的温度持惊人的乐观态度，相信这可以在一百年内完成。)

A third is certain basic chemicals such as carbon, oxygen and nitrogen.(第三种是某些基本的化学物质，如碳、氧和氮。)

You said that the nitrogen cycle is also an important nutrient cycle.(你说了，氮循环也是一个重要的营养循环。)

A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.(早在一个世纪以前，亨利·卡文迪什就注意到：当氧和氮从空气中除去时，会有残余气体存在；但人们还没有认识到这些残余气体的重要性。)

Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.(即使是元素状态为气体的氮，也通常作为硝酸根离子从土壤中被吸收。)

Soils are most commonly deficient in nitrogen and phosphorus.(土壤*经常缺乏氮和磷。)

Plankton generally thrive in areas of the ocean with sufficient concentrations of certain nitrogen compounds near the surface, where plankton live.(浮游生物通常在海洋表面附近某些含氮化合物浓度足够高的区域大量繁殖，而海洋表面正是浮游生物生存的地方。)

The faeces contain nitrogen which fertilizes the soil.(排泄物含有肥沃土壤的氮。)