查询词典 nitrogen

The final refinement converged to R=0.0686 and 0.0688. In the two complexes, the metal atom is coordinated with one nitrogen atom of alkylamine and three sp^2 nitrogen atoms from NTB and one oxygen atom from H~2O to form a distorted trigonal-bipyramid configuration.

配合物中的金属原子与配体NTB分子中的一个烷胺氮原子、三个sp^2氮原子和一个水分子中的氧形成五配位的扭曲三角双锥构型。

It increased the content of chlorophyll, soluble protein, ammoniac nitrogen and soluble sugar in functional leaves, but declined the content of starch and nitrate nitrogen in functional leaves during the whole growth period of cotton.

研究表明，增加硝化抑制剂有利于棉花在生长发育的各个时期，功能叶片叶绿素、可溶蛋白、氨基态氮、可溶糖含量的积累，但抑制淀粉和硝态氮含量的积累。

Whereas, the predicted results of ammoniac nitrogen degradations in case of different refuse densities display that once the refuse density is less than 535 kg/m3, the refuse density has little effect on the leachate ammoniac nitrogen degradation.(2) the diameters of leacheate collection pipes is also one of important factors to influence the leachate quality degradation.

但是，对不同压实密度的准好氧填埋场的渗滤液氨氮衰减预测显示，当压实密度小于535 kg／m~3时，其对准好氧填埋场的渗滤液氨氮降解效果影响不甚明显；(2)渗滤液收集管管径也是影响准好氧填埋场降解效果的重要因素之一。

But ammoniac nitrogen content increased in every organ of cotton with the increase of NH4~ density, and the maximum of ammoniac nitrogen accumulation in each cotton presented in the solution of 75/25 ratio, not in the solution of 100/0 (NH4/NO3~) ratio.

田间条件下，随着氮肥水平的提高，棉田土壤中残留全氮含量和铵态氮含量呈明显增加的趋势。

The content of total Phosphorus was very high, with the average of 2.63mg/g, while the nitrite was very low and there was no relative chemic counterbalance among nitrate, nitrite and ammoniate, because the inorganic nitrogen circle was also affected by organic nitrogen in water and sediments.

以滇池马村湾和海东湾为研究对象，对其沉积物－间隙水－上覆水三界面中的磷、氮形态作研究，其中钙结合态磷占的比例最大，其次是有机/细菌聚合态磷和残渣磷；总氮含量很高，平均值为2.63 mg/g，而亚硝酸盐氮含量很低，其它三种无机氮形态（硝酸盐氮、亚硝酸盐氮和氨氮）之间并不存在恒定的化学计量关系，这主要是无机氮循环还受水体和沉积物中有机氮的影响。

The reason was that Available-N was restraining the ammonification of organic nitrogen with the improving nitrogen.

而有机肥与化肥配合施用虽然可以提高可矿化氮含量，但与单施氮肥和单施有机肥处理差异不大。

Terrestrial microorganisms play a vital role in soil nitrogen cycling. They participate in important ecological processes such as nitrogen fixation, ammonification, nitrification and denitrification.

土壤微生物在土壤氮循环中发挥着不可替代的作用，参与了包括固氮作用、氨化作用、硝化作用和反硝化作用等重要生态过程。

Adjusting pH to 12, air-liquid ratio to the range of 3 000～4 000 and temperature to the range of 35～45℃, after the washing wastewater from deposited ammonium carbonate that the initial concentration of ammonia nitrogen was 1 570 mg/L was treated by ammonia stripping, the residual concentration of ammonia nitrogen was controlled to below 100 mg/L and removal efficiency reached to over 94%.

发现pH、温度和气液比是氨氮去除效率高低的关键因素，废水初始浓度对去除率无影响。调节废水pH=12，气液比在3 000~4 000，温度在35~45℃范围，浓度为1 570 mg/L的碳铵沉淀洗涤废水经氨吹脱处理可使出水残余氨氮浓度控制在100 mg/L以下，去除率达94%以上。

By measuring and analyzing the total nitrogen,α-amino nitrogen and component, the effect of high pressure on the autolysis of anchovy, and the effect of salt addition as well as enzyme added on the high pressure hydrolysis were investigated.

以水解液总氮含盆、α-氨基氮及游离氨基酸组成成分等为指标，研究了超高压在鳀鱼自身降解过程中所起的作用，同时讨论了超高压下添加盐、外源酶对超高压作用效果的影响。

It is composed of fly ash or mud, nitrogen and water arid formed by physical mixture. It makes use of the all-around capability of solid, liquid and gas states to prevent mine fire. In other words, the fly ash or mud can cover the combustible, the nitrogen can asphyxiate it and the water can cool it.

由粉煤灰或黄泥、氮气和水通过物理机械方式形成的防灭火三相泡沫，具有集固、液、气三相材料的防灭火性能于一体，充分利用粉煤灰或黄泥的覆盖性、氮气的窒息性和水的吸热降温性进行防灭火的特性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。