Nitrogen as a plant nutrient is treated in a great number of publications.
人们对植物营养中的氮素研究已发表相当大量的报告。
The content of exchangeable Al increased with the amount of applied nitrogen as urea.
茶园土壤交换性铝含量随施氮量的提高而增加；
In the late 19th century scientists diagnosed a shortage of nitrogen as a planet-wide problem.
在19世纪晚期，科学家断定，缺氮将成为一个全球性的问题。
Terramycin crystal mother solution contains high concentration of nitrogen as well as carbon.
土霉素结晶母液是一种含高硫高氮的高浓度难生物降解有机废水。
Processes that use nitrogen as a liquid do not require the vaporizers and pressure control manifold.
使用液氮的过程不要求有汽化器和压力控制管。
Common purity nitrogen as the material, through some special technics, wipe off the oxygen and water in nitrogen, then get high purity nitrogen.
利用普氮为原料，通过一定的特殊工艺的处理，去除普氮中的氧、水等杂质，得到高纯氮气。
Adsorption and separation technology were studied with reforming topped oil as feedstock, 5 a molecular sieve as adsorbent, nitrogen as desorbent.
采用吸附分离工艺，以5A分子筛为吸附剂，氮气为脱附剂，将重整拔头油分离成高纯度的正构烷烃和异构烷烃。
Renovation also includes adding fertilizer. Adding nitrogen as a side or top dressing in late summer will supply nutrients to the fruit buds for the following spring.
“更新”还包括就添加肥料。添加氮素是一方面，或者在夏末进行追肥，这样将能在来年的春季为果芽提供养分。
The increase in the MPP of nitrogen as potash application levels are increased is an indication of the positive impact that potash has on the effectiveness of nitrogen.
氮肥的边际产量随着钾肥用量的增加而增加的现象说明，钾肥对氮肥施用的有效性具有积极的作用。
The technique USES hot nitrogen as desorption medium, and recovers the enriched desorption gas in a cooling or absorption manner, thereby realizing zero-release of pollution.
此工艺以热氮气作为解吸介质，富集后的解吸气通过冷凝或吸收方式加以回收，实现污染物零排放。
With the rapeseed meals as raw material, peptide recovery ratio, soluble nitrogen and amino acid nitrogen as the indexes, the craft that rapeseed peptide was produced with Bacillus.
以菜籽粕为原料，肽得率、氮溶解指数和氨基酸态氮为指标，通过单因素实验及中心组合实验设计探讨了枯草芽孢杆菌固态发酵生产菜籽肽的工艺条件。
Seriously undervalued Swedish apothecary and chemist who was the actual discoverer of oxygen and nitrogen as well as of the elements arsenic, barium, chlorine, manganese, and molybdenum.
受到严重轻视的瑞典药剂师、化学家。他是氧气和氮气同时也是砷、钡、氯、锰和钼元素的真正发现者。
Cracking natural gas with thermal plasma is one of the technical tools to convert natural gas efficiently. With nitrogen as the working gas, the main products include acetylene, ethylene and hydrogen.
热等离子体裂解天然气是可以高效转化天然气的技术手段之一，当以氮气为工作气体时主要产物有乙炔、乙烯、氢气。
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。
These pollutants are called aerosols and they include soot as well as compounds of nitrogen and sulfur and other stuff into the air.
这些污染物被称为气溶胶，它们包括煤烟以及空气中氮、硫和其他物质的混合物。
Reactive nitrogen emissions from agriculture are the most intractable as they come from many diffuse sources.
来自农业的活性氮的排放是最棘手的，因为它们的来源很分散。
Similar rights could be given to nitrogen polluters, as they have been to carbon polluters in Europe, and to seabed miners on continental shelves.
相似的政策也会对氮素污染者发挥作用，这已经对欧洲的碳素污染者和大陆架上的海底采矿者开始实施。
Countries such as Denmark have halved their nitrogen inputs without hurting yields in recent years.
近年来，像丹麦这样的国家已经在不减产的前提下减少了一半氮肥的使用。
The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.
月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。
Experimental crop plants that use nitrogen more efficiently provide the same yields as normal crops with less fertiliser.
能更有效地利用氮肥的实验性农作物能在使用较少肥料的情况下做到和普通农作物的产量一样。
Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.
生物炭在澳大利亚使用后，几个月后，农田的碳排放量剧减70%多，与此同时，它还能阻止土壤里的氨氮溶入水体。
The emissions will escalate as nitrogen trifluoride's use increases.
随着使用量增加，三氟化氮的排放量也将升级。
Gases such as oxygen, nitrogen, etc are produced at the plant.They use a German technology and will hire German employees as well.
工厂生产氧气，氮气等气体，他们采用德国技术，并聘请德国员工。
Gases such as oxygen, nitrogen, etc are produced at the plant. They use a German technology and will hire German employees as well.
工厂生产氧气，氮气等气体，他们采用德国技术，并聘请德国员工。
The blend rapidly chills as liquid nitrogen -- with a boiling point of -320 degrees -- instantly vaporizes in a billowing, Phantom of the Opera-esque fog.
液态氮的沸点是零下320度，当它迅速蒸发时，会腾起一股《歌剧魅影》式（Phantom ofthe Opera）的白雾；同时，搅拌物的温度会骤然降低。
Triton is so cold that most of its nitrogen is condensed as frost, making it the only satellite in the solar system known to have a surface made mainly of nitrogen ice.
海卫一温度极低(约为- 235摄氏度，一个大气压下- 210度左右氮气凝固——译者注)，以至其大部分的氮气都凝聚到了其表面形成霜，这使海卫一成为太阳系内唯一一颗以“氮冰”为主要地表成分的星球。
In experimental plots the plants often need less than half as much nitrogen to achieve the same yield-or get 25% more yield for the same nitrogen.
在试验田里，作物通常只需要不到一半的氮就可以达到同样的产量—或者在施同样多氮肥的情况下，产量提高25%。
Both fertilizers and manure release nitrogen into natural systems such as rivers, upsetting the natural balance.
化肥和粪肥都释放氮到自然生态系统，如河流，从而破坏自然的平衡。
Both fertilizers and manure release nitrogen into natural systems such as rivers, upsetting the natural balance.
化肥和粪肥都释放氮到自然生态系统，如河流，从而破坏自然的平衡。
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