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nitrogen
nitrogen Chem. (ˈnaɪtrədʒən) Also 8–9 -gene. [ad. F. nitrogène (Chaptal 1790): see nitro- and -gen 1.] a. A ‘permanent’ gas (symbol N), without colour, taste, or smell, which forms about four-fifths of the atmosphere.1794 Pearson in Phil. Trans. LXXXIV. 391 The remainder of the gaz extinguished flam... Oxford English Dictionary
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Liquid nitrogen
Liquid nitrogen—LN2—is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about . See also Liquefaction of gases Industrial gas Computer cooling Cryogenic nitrogen plant Liquid nitrogen engine References Nitrogen Coolants Medical equipment wikipedia.org
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nitrogen
nitrogen/ˈnaɪtrədʒən; `naɪtrədʒən/ n[U]chemical element, a gas without colour, taste or smell that forms about four-fifths of the atmosphere 氮. =>App 10 见附录10. 牛津英汉双解词典
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what is nitrogen liquid
Liquid nitrogen has a boiling point of about . It is produced industrially by fractional distillation of liquid air.
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Who creates first nitrogen compounds in the food supply chain As I understand the food supply chain, organic compounds have to be created from a unlimited source (air, water...). For instance, I figure that plants tr...
There are nitrogen fixing bacteria who turn N2 into NH3. Some are free-living in soil, others live symbiotically with plants. <
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The nitrogen cycle As I understand it, bacteria absorb nitrogen from the air, and deposit nitrates in the soil. These are absorbed by plants which use them to build complex molecules such as proteins. This enters the ...
**Mass of Nitrogen in Atmosphere** ca. 4 x 1018kg (Wikipedia page on “Atmosphere of Earth”) **Nitrogen fixed by natural, nonagricultural organisms per annum** ca. 2 x 1011kg (“Global Nitrogen: Cycling out of Control”) **Atmospheric nitrogen fixed per annum** **ca. 0.5 x 10 –5 %** **Conclusion**
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Nitrogen - Hardy Gases & Machinery Sdn Bhd
NITROGEN: 氮： APPLICABLE FOR: 适用于： Purging and pipeline testing. 清洗和管道测试 Tyre inflation. 轮胎充气 Food packaging and wine making. 食品包装和酿酒 Metal degassing. 金属脱气 Aerosol propellant. 气溶胶推进剂 Photo processing. 照片处理 Plastic forming. 塑胶成型 Firefighting. 消防 TECHNICAL DATA: 技术数据： TYPES OF CYLINDER 气瓶类型 ...
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why is nitrogen dating unreliable
Nitrogen dating is a form of relative dating which relies on the reliable breakdown and release of amino acids from bone samples to estimate the age of For human bones, the assumption of about 5% nitrogen in the bone, mostly in the form of collogen, allows fairly consistent dating techniques.
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Nitrogen Products & Locations | Nutrien
About Nutrien's nitrogen facilities. Nutrien is the third-largest nitrogen producer in the world with over 7 million tonnes of gross ammonia capacity and the ability to produce more than 11 million tonnes of total nitrogen products in the US, Canada and Trinidad.. We distribute our nitrogen products across an extensive network of approximately 190 distribution points and lease 5,500 railcars ...
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Determination and Relationship of Ammonia Nitrogen, Nitrite Nitrogen ...
The total nitrogen, nitrate nitrogen, ammonia nitrogen, and nitrite nitrogen in the upstream reservoir water were determined by the spectrophotometry. The contents of total nitrogen, nitrate nitrogen, ammonia nitrogen, and nitrite nitrogen in the samples collected from the fixed monitoring point of the upstream reservoir in recent two years were determined using the ultraviolet spectrophotometry.
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nitrogen arc meaning in Chinese - ichacha.net
nitrogen arc in Chinese : 氮弧 …. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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Characteristics of nitrogen and phosphorus losses - ProQuest
Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.
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What are the advantages of filling tires with Nitrogen instead of air? I am completely new to riding bikes and know that are usually filled with air but nowadays some people fill them with Nitrogen instead. I don't k...
There are some compelling reasons for filling vehicle tires with pure nitrogen in performance situations, but for bike tires it's just snake oil. It's also worth noting that the air you breathe and fill your tires with is more than three-quarters Nitrogen, so this isn't as special as it may sound
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Nitrogen dioxide - Wikipedia
Nitrogen dioxide is a chemical compound with the formula NO 2.One of several nitrogen oxides, nitrogen dioxide is a reddish-brown gas.It is a paramagnetic, bent molecule with C 2v point group symmetry.Industrially, NO 2 is an intermediate in the synthesis of nitric acid, millions of tons of which are produced each year, primarily for the production of fertilizers.
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nitrogen narcosis in Chinese - nitrogen narcosis meaning in Chinese ...
nitrogen narcosis in Chinese : :氮麻醉;氮氮麻醉…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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