查询词典 nitrogen

The characteristics of the nitrogen releasing from different coal pyrolyzing in the tube furnace were studied. The effects of operating parameters, coal property on the characteristics of the nitrogen releasing was also discussed.

试验研究了烟煤、贫煤及其混煤在管式炉热解过程中氮的析出特性，探讨了煤质特性、运行参数对氮析出特性的影响。

These polyamides showed glass-transition temperatures between 230~251 oC and softening temperatures between 230~250 oC, 10% weight-loss temperatures in excess of 488 oC in nitrogen and air atmospheres, and char yields higher than 61% at 800 oC in nitrogen.

这些聚合物的玻璃转移温度在230~251 ℃之间和软化点温度范围在230~250 ℃之间，在氮气下或空气下的10 %重量损失皆在488 ℃以上，在氮气下加热至800 ℃时的焦炭残余率超过61 %，显示具有良好的热安定性。

The amount of nutrients derived from chemical fertilizer was increased. The nitrogen fertilizer application rates applied to wheat ranged from 103kg/hm〓 to 192kg/hm〓, from 99kg/hm〓 to 187kg/hm〓 for rape and from 173kg/hm〓 to 207kg/hm〓 for rice. The nitrogen fertilizer application rates applied to maize, potato and apple tree tended to increase, from 60kg/hm〓, 64kg/hm〓 and 299kg/hm〓 to 196kg/hm〓, 127kg/hm〓 and 126kg/hm〓 respectively.

化肥施用总量总体上为增加趋势，单位面积氮肥施用量为：小麦、油菜与水稻年际之间波动较大，其中小麦在103-192kg／hm〓间变化，1991年达到高峰，油菜在99-187kg／hm〓间变化，1992年达到高峰，水稻在173-207kg／hm〓间变化；玉米、马铃薯与苹果为增加趋势，分别从60kg／hm〓、64kg／hm〓y和299kg／hm〓增加到196kg／hm〓、127kg／hm〓和352kg／hm〓。

The coordinated COD of 3 and 4 can be replaced by carbon monoxide to yield the corresponding dicarbonyl species [(C,N-pyN^C-R) M2]BF4 (14, M= Rh; 15, M= Ir). Ligand substitution of 11a by phosphines and azide causes the de-complexation of pyridinyl-nitrogen donor to generate the corresponding carbene rhodium complexes [(C-pyN^C-Mes)RhPR3] (17a, R = Ph, 17b, R = Et) and [RhN3] (19), respectively, indicating the labile nature of steric-hindered pyridinyl-nitrogen donor.

螯合错合物的吡啶配位，可以容易被σ-予体，如卤离子、叠氮阴离子、膦试剂，置换；但是铑与铱金属螫合物与π-酸试剂，如一氧化碳、异腈，则发生COD被置的产物14a与16；与三甲基亚磷酸酯反应时，COD及吡啶均会被取代而得到单芽的三铑-碳烯错合物18；双膦化合物则会取代铑金属上全部的配位基。

If users need to protect the atmosphere workpiece reduce oxidation, can be installed in a stainless steel lid three Pentanes injection, infusion methanol or kerosene, to produce simple protective atmosphere, in the lower part of the furnace installation of nitrogen gas pipeline, nitrogen-protection or washed out into the flammable gas to prevent an explosion accident.

如用户提出需要气氛保护使工件减少氧化，可在炉盖上安装有不锈钢三头油注器，滴入甲醇或煤油，以产生简易保护气氛，在炉膛下部安装有氮气进气管道，可通入氮气保护或冲散可燃性气体，以防发生爆炸事故。

Reduce oxidation, can be installed in a stainless steel lid three Pentanes injection, infusion methanol or kerosene, to produce simple protective atmosphere, in the lower part of the furnace installation of nitrogen gas pipeline, nitrogen-protection or washed out into the flammable gas to prevent an explosion

如用户提出需要气氛保护使工件减少氧化，可在炉盖上安装有不锈钢三头油注器，滴入甲醇或煤油，以产生简易保护气氛，在炉膛下部安装有氮气进气管

Observation data were analyzed with focus on concentrations of nitrogen oxidants and nitrogen deposition flux.

本文对观测得到的数据资料进行分析，定量给出了农田生态系统大气氮化物浓度和氮沉降通量。

The nitrided layer formed on the surface of stainless steel consists of a nitrogen supersaturated austenite which is maintained to very high nitrogen concentrations and is of high hardness and good corrosion resistance.

与一般离子渗氮不同的是，这些新方法是在真空度较高、温度较低的条件下进行渗氮，可以充分地利用离子的能量提高渗氮效率。

In the Loess Plateau area, planting plantation had much help for the improvement of the nutritional element content, such as soil organic matter, total nitrogen, total phosphorus, available nitrogen and quick-acting potassium, and different plantations had different enhancement degrees.

结果表明：在黄土高原地区，种植人工林后能增强土壤腐殖化作用，促进土壤有机质的形成发育，对土壤的有机质、全氮、全磷、及碱解氮、速效钾等营养元素含量提高有很大帮助。

Except total potassium and quick-acting phosphorus, every target in nitrogen fixation plantation was higher than that in non-nitrogen fixation plantation.

不同林型植被，土壤的腐殖化作用有明显差异，土壤有机质、各营养元素和阳离子交换量增加不同，除全钾、速效磷以外，表现为刺槐侧柏混交林＞刺槐＞侧柏＞荒地。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！