氮循环也一样，它将空气中的纯氮转化成有用的化合物，而人类使其加速了150%以上。
So too is the nitrogen cycle, which converts pure nitrogen from the air into useful chemicals, and which mankind has helped speed up by over 150%.
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。
Common purity nitrogen as the material, through some special technics, wipe off the oxygen and water in nitrogen, then get high purity nitrogen.
用组合成的可溶性聚硅烷1 71 0 A作涂膜材料，进行不同温度的真空热解或高纯氮下热解实验。
Using compositional soluble polysiloxane 1710a as film coating material, vacuum or high purity nitrogen pyrolysis experiments are made in different temperatures.
介绍了氮中微量氧标准气体在研究过程中稀释气体高纯氮中氧分析不确定度的评价依据，给出了评价过程和结果。
The analysis method was introduced for micro-oxygen in nitrogen calibration gases in this paper, at the same time we have definited the suitable analysis conditions and precision.
他们将容器充满由蒸发液态氮和液态氧得到的纯空气，再加入水蒸气和一些痕量气体。
They fill the container with pure air made by evaporating liquid nitrogen and liquid oxygen, and add water vapour and some trace gases.
纯铁渗氮层则由化合物层和扩散层组成。
The nitrided layer of pure iron consists of compound layer and diffusion layer.
采用等离子体源离子注入方法，将氮离子注入纯铁粉中，对样品进行穆斯堡尔谱研究。
Mssbauer measurements have been carried out for pure iron powder samples, the whose surface was implanted with nitrogen ions by plasma source ion implantation techniques.
在氮、磷肥施用的基础上，配施富钾硅多元复合物与施纯硅肥、钾肥、钙镁肥一样，在酸性土壤上具有显著的增产效应；
On the basis of N and P fertilizers, application of the multiple element compound has positive effect on yield in the acid soils.
主要测试无爆炸性之各种固态或液态之纯质有机化合物中的氮、碳、氢、氧及硫之重量百分率。
A primary use of testing the weight percentages of nitrogen, carbon, hydrogen, oxygen and sulfur within a variety of solid or liquid explosive of pure organic compounds.
对TA1纯钛进行了离子碳氮共渗。
The ion carbonitriding process was applied to pure titanium TA1.
讨论了在纯铁催化剂上，氮分子和氢分子逐步合成氨的反应机理。
The mechanism of hydrogenation of nitrogen into ammonia was discussed on the pure iron surface.
与此相反，棉花所吸收的氮量和肥料氮利用率均比纯作春棉降低，收获期有较多的氮素滞留于营养器官和铃壳中。
On the contrary, N utilization and absorption by cotton decreased. At harvest, a higher percentage of nitrogen remained in vegetative organs.
结果表明，氮离子注入对纯铁表面形貌产生了一定的影响，随着注入离子剂量的增加，材料表面的粗糙度也随之增加。
The results showed that, the surface morphology was changed since nitrogen ions implantation, with the increase of the implanted dosage of nitrogen ions, the surface roughness increased.
结果表明，氮离子注入对纯铁表面形貌产生了一定的影响，随着注入离子剂量的增加，材料表面的粗糙度也随之增加。
The results showed that, the surface morphology was changed since nitrogen ions implantation, with the increase of the implanted dosage of nitrogen ions, the surface roughness increased.
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