nitrogen

CET4CET6考研IELTS

英[?na?tr?d??n]
美[?na?tr?d??n]

基本釋義

n.
[化]氮,氮?dú)?/dd>

詞性變化

實(shí)用例句

Nitrogen is the most important for high yield of rice.

氮對(duì)水稻高產(chǎn)最為重要.

期刊摘選

However, remained organic matter was not enough for the denitrification of nitrogen nitrate.

然而, 有機(jī)物過早消耗對(duì)硝化后產(chǎn)生的硝酸氮再行反硝化作用不利.

期刊摘選

The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.

谷酰胺或天門冬酰胺的酰胺氮作用較氨更有效.

辭典例句

The granularity of coal, inoculation amount of bacteria and additional nitrogen have some effect on desulfurization.

煤樣的粒度 、 菌接種量、加氮源對(duì)脫硫有一定影響.

期刊摘選

Nitramines are substances which contain a nitro group bonded to nitrogen.

含有與氮原子相連的硝基的物質(zhì)稱為硝胺.

辭典例句

Can detect hydrogen, oxygen, nitrogen, carbon monoxide, methane, dioxide, ethylene, ethane, acetylene and other gases.

可對(duì)氫 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九種氣體檢測(cè).

期刊摘選

Increased nitrogen levels in seawater upset the natural ecological balance of the oceans.

海水中增加的氮含量打亂了海洋的自然生態(tài)平衡.

期刊摘選

Enterprises shall gradually adopt measures to control the nitrogen oxide generated by the burning of fuel.

  企業(yè)應(yīng)當(dāng)對(duì)燃料燃燒過程中產(chǎn)生的氮氧化物采取控制措施.

期刊摘選

Nitrification is the key to biological wastewater nitrogen removal.

硝化作用是廢水生物脫氮中的關(guān)鍵.

期刊摘選

High concentration of sulphur dioxide, nitrogen, oxides and dust have long been known to be harmful.

人們?cè)缫阎?二氧化硫 、 氮 、 氧化物和塵埃濃度高是有害的.

期刊摘選

And also it refers the prevention and treatment technology of nitrogen in groundwater.

同時(shí),要提高三氮污染的野外監(jiān)測(cè)水平和三氮污染的治理技術(shù)研究.

期刊摘選

The lamp is full of gaseous nitrogen.

燈里充滿了氣體氮.

期刊摘選

Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.

氮: 氣態(tài)化學(xué)元素, 化學(xué)符號(hào)N, 原子序數(shù)7.

期刊摘選

Common market, there are nitrogen, air, hydrogen, ammonia, acetylene, propane, steam and other special relief valve.

市面上常見的有氮?dú)?、 空氣 、 氫氣 、 氨 、 乙炔 、 丙烷 、 水蒸氣等專用減壓閥.

期刊摘選

The mechanism of the high nitrogen stainless steel showing excellent properties also analyzed and discussed.

本文還對(duì)高氮不銹鋼表現(xiàn)出的優(yōu)異性能的機(jī)制進(jìn)行了分析和討論.

期刊摘選

Since nitrogen is non corrosive , special materials of construction are not required to prevent corrosion.

由于氮無腐蝕性,不需要特殊的建材.但是,選擇的建材必須能抗液氮的低溫.

期刊摘選

There are nitrogen, oxygen, a little carbon dioxide and water vapour.

它們分別是氮?dú)? 氧氣, 少量的二氧化碳和水蒸汽.

期刊摘選

Nitrogen dioxide and ozone may cause pulmonary edema.

二氧化炭和臭氧可以引起肺水腫.

辭典例句

The atmosphere consist of more than 70 % of nitrogen.

大氣中含有70%以上的氮?dú)?

《簡(jiǎn)明英漢詞典》

Every tonne of coal contains, on average, 30 kilograms of nitrogen.

每噸煤平均含30公斤氮.

《簡(jiǎn)明英漢詞典》

What is the percentage of nitrogen in air?

空氣中所含的氮的比例是多少?

《簡(jiǎn)明英漢詞典》

Nitrogen is a gas without colour or smell.

氮是一種無色無臭的氣體.

《簡(jiǎn)明英漢詞典》

The plant requires nitrogen in order to make proteins.

植物需要氮以便制造蛋白質(zhì).

《現(xiàn)代漢英綜合大詞典》

The faeces contain nitrogen and it is that which fertilises the desert soil.

糞便含氮,而正是氮可以肥化荒蕪的土地。

柯林斯例句

英英釋義

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

同義詞

最新英語單詞

行業(yè)英語