nitrogen

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

市面上常见的有氮气 、 空气 、 氢气 、 氨 、 乙炔 、 丙烷 、 水蒸气等专用减压阀.

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

海水中增加的氮含量打乱了海洋的自然生态平衡.

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

由于氮无腐蚀性,不需要特殊的建材.但是,选择的建材必须能抗液氮的低温.

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

本文还对高氮不锈钢表现出的优异性能的机制进行了分析和讨论.

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

煤样的粒度 、 菌接种量、加氮源对脱硫有一定影响.

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

人们早已知道,二氧化硫 、 氮 、 氧化物和尘埃浓度高是有害的.

We know that ionization energy is going to increase as we go across the periodic table, so that means carbon has a lower ionization energy than nitrogen which is right next to us.

我们知道电离能会随着周期表，向右而逐渐变大，因此碳的电离能比旁边的氮要低一些，那么就像我说的。

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

含有与氮原子相连的硝基的物质称为硝胺.

The lamp is full of gaseous nitrogen.

灯里充满了气体氮.

Nitrogen dioxide and ozone may cause pulmonary edema.

二氧化炭和臭氧可以引起肺水肿.

Nitrogen oxides ( NOX. ) are produced when fuel is burned at very high temperatures.

氮氧化物 ( NOX ) 产生于高温下的燃料燃烧.

Nitrification is the key to biological wastewater nitrogen removal.

硝化作用是废水生物脱氮中的关键.

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

同时,要提高三氮污染的野外监测水平和三氮污染的治理技术研究.

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

谷酰胺或天门冬酰胺的酰胺氮作用较氨更有效.

The plant requires nitrogen in order to make proteins.

植物需要氮以便制造蛋白质.

Nitrogen is the most important for high yield of rice.

氮对水稻高产最为重要.

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

粪便含氮，而正是氮可以肥化荒芜的土地。

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.

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

它们分别是氮气, 氧气, 少量的二氧化碳和水蒸汽.

Urea could also improve the forming of biofilm, but other nitrogen sources had no obvious effect.

氮源中尿素对植生克雷伯菌生物被膜的形成也有促进作用，其它氮源几种影响效果不明显。

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

氮: 气态化学元素, 化学符号N, 原子序数7.

The atmosphere consist of more than 70 % of nitrogen.

大气中含有70%以上的氮气.

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

然而, 有机物过早消耗对硝化后产生的硝酸氮再行反硝化作用不利.

Nitrogen is of paramount importance to life on earth.

氮对地球上的生命至关重要。

What is the percentage of nitrogen in air?

空气中所含的氮的比例是多少?

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

可对氢 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九种气体检测.

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

每吨煤平均含30公斤氮

It was an adaptation of Wilson's cloud chamber, filled with nitrogen gas.

这只是对威尔逊氮气云室的一种改进.

Nitrogen is a gas without colour or smell.

氮是一种无色无臭的气体.

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

　　企业应当对燃料燃烧过程中产生的氮氧化物采取控制措施.