查询词典 nitrogen dioxide

The average value of the total nitrogen,ammonium nitrogen,nitrate nitrogen,available nitrogen and organic nitrogen were 4591 mg/kg,12.66 mg/kg,1.8 mg/kg,26.25 mg/kg and 4598 mg/kg respectively.The forms of nitrogen that we concerned were decreased from plow layer to subsoil in five paddy soil profile.

土壤表层全氮、铵态氮(NH_4~-N)、硝态氮(NO_3~--N)、碱解氮、有机氮均匀含量分别为4591 mg/kg、12.66 mg/kg、1.8 mg/kg、26.25 mg/kg、4598 mg/kg，土壤表层各形态氮素的含量在剖面中的分布特征是从表层到底层呈下降趋势。

With determining and comparing the result of the output of chlorine dioxide, the purity of chlorine dioxide, the rate of chlorine dioxide, the capacity of active chlorine and the output of chlorine generated by positive pressure type chlorine dioxide generator under different pressure, this paper draws the conclusion that the effect of pressure to aerogenesis efficiency of chlorine dioxide generator is indistinctive when the pressure is in the range of 0～0.6M Pa.

从化学平衡角度分析，压力增加会抑制正向反应的进行。为了验证实际效果是否如此，本文通过在不同压力下对正压式反应器 ClO2产量、纯度、得率及总有效氯产量等指标进行测定与比较得出，在 0～0.6M Pa的常用压力下，压力的变化对二氧化氯发生器的产气效率无显著影响。

The basis function of the coinjection of Nitrogen and steam is increasing the displacement volume and supply the displacement energy on the basis of Nitrogen, the result of the numerical simulation showed that, after the coinjection of Nitrogen and steam (the optional aqueous Nitrogen ratio was 1: 20～1: 50), the theamal readius increased from 30m to 55m more or less, the recovery ratio increased by 5～10％. The production effect of the high cycles steam stimulation will be improved and the pattern infill will be avoided and the economic results will be improved. 4. The poor result of steamflood is another problem. On the basis of the analysis of the foamer mechanism in the propayation, movement and stabilization, this paper showed that the main meachanism of the increasing recovery of the Nitrogen foam and steamflood was the increasing displacement factor and oil displacement efficiency.

三针对蒸汽吞吐加热半径有限（一般30m左右）而蒸汽吞吐轮次已高达5轮以上的具体情况，将氮气与蒸汽混合（套管环空中注氮气，油管中注蒸汽）进行吞吐可增加加热半径1～2倍以上；在对原油流变性研究基础上，对氮气蒸汽原油体系状态进行了分析，指出了氮气在油藏中基本上是以气相方式存在；热氮混合吞吐的基本作用为扩大波及体积和提供驱油能量；在此基础上所进行的热氮混注数值模拟研究表明：蒸汽中加入氮气后（最佳汽氮比为1：20～1：50），加热半径从30m增至55m左右，采收率可提高5～10％以上，大大改善了高轮次蒸汽吞吐的生产效果，可避免大规模井网加密，提高了经济效益。

The nitrogen in the coal exists in the forms of pyridine (N-6), pyrrolic and pyridone (N-5), quaternary nitrogen and nitrogen oxides. The N-Q near 401.5eV is assigned to a protonated or oxide form of pyridinic nitrogen. On this basis, the nitrogen in six-membered rings is the dominant in Yibin coal.

研究结果表明，宜宾煤中氮的官能团有4种，即吡啶(N-6)、吡啶(N-5)、质子化吡啶和氮氧化物，其中吡咯含量最大，煤中的N-X就是N-O，是煤中吡啶结构氮与氧直接结合的结果。

Compared with that in the control, the proportion of acidolysable organic nitrogen to total nitrogen decreased mainly due to decreasing proportion of amino acid nitrogen and ammonium nitrogen to total nitrogen.

施肥处理的酸解有机氮占全氮的比例减小，主要是由氨基酸态氮、酸解铵态氮占全氮的比例减小所致。

The results showed that removal effect of periphyton on nitrogen was significant.Cumulative removal ratio of nitrogen was up to 60%,the nitrogen concentration decreased from 5 to 2 mg /L or so within two weeks.Cumulative removal ratio of nitrogen was closely related with nitrogen concentration,working time and biomass of periphyton.

结果表明，附着生物对水体中的氮有显著的去除效果，半个月内，附着生物对水体中总氮的累积去除率可达60%，在有附着生物的水体中总氮浓度从5 mg/L左右下降到2 mg/L左右；附着生物对水柱中氮的累积去除率和水柱中氮的浓度、附着生物的生物量以及附着生物作用时间密切相关。

A device (1) for separating sulphur dioxide from a gas (4) by means of an absorption liquid has an inlet (2) for gas (4) containing sulphur dioxide, an outlet (18) for gas (16), from which sulphur dioxide has been separated, and as essentially horizontal apertured plate (8), which is arranged to allow passage from below of sulphur dioxide containing gas (4) and to carry, on its upper side (12), a flowing layer (14) of the absorption liquid.

一种用于通过吸收液自气体(4)分离二氧化硫的装置(1)具有用于含二氧化硫的气体(4)的入口(2)和用于已经从中分离二氧化硫的气体(16)的出口(18)，及安装使得含二氧化硫的气体(4)从下面通过并在其上面(12)承载吸收液的流动层(14)的基本上水平的开孔板(8)。

During the researching of coagulation of fieshly formed manganese dioxide, it is found that the freshly formed manganese dioxide has more strong function of coagulation and filtration than the same dosage of ferric chloride at the lower dosage condition. With dynamic monitor of the coagulation process of freshly formed manganese dioxide, comparing with ferric chloride, the floccules formed speed of coagulation by freshly formed manganese dioxide is rapid, the size is big, the sediment speed swift.

在研究新生态二氧化锰混凝作用中，作者发现在低剂量条件下，与等当量的三氯化铁混凝剂相比，新生态二氧化锰具有更强的混凝、除浊和助滤效能；并且通过对新生态二氧化锰絮凝过程的动态监测，发现新生态二氧化锰与三氯化铁相比，混凝生成絮体颗粒速度更迅速，颗粒尺寸更大，沉速更快。

Carbon dioxide is like nitrogen in many ways, but if it is mixed with limewater, it causes the clear liquid to because milky, while nitrogen dose not. This is the test for carbon dioxide.

二氧化碳在许多方面类似于氮气，但如果它与石灰水混合，它就使清澈的液体变成乳状液，而氮气不能，由此可以鉴别热氧化碳。

I plant specializing in the production of carbon dioxide gas, nitrogen, hydrogen, oxygen, torch gas, nitrogen, vinyl chloride, propylene gas, liquefied petroleum gas, natural gas, liquefied petroleum gas, ammonia, sulfur dioxide and other processes of the compressor.

我厂专业生产二氧化碳、煤气、氮氢气、氧气、火炬气、氮气、氯乙烯、丙烯气、石油气、天然气、液化气、氨气、二氧化硫等工艺性压缩机。

They experience feelings deeply and intensely, and their emotions are often mercurial.

他们的感情深刻而强烈，情绪善变。

Surrounded with or as if with a rampart.

用城墙围绕的用城墙围绕的或类似于为城墙围绕的