查询词典 nitrogen

The bulk fraction is a mixture of methane, carbon dioxide, hydrogen, nitrogen and oxygen.

主要成分是甲烷，二氧化碳，氢气，氮气和氧气的混合气体，这些成分的含量一般用所占填埋气的体积比来表示

The total nitrogen, hydrolyte N ,available K and soil's OM are principal components in the soil fertility factor analysis. The soil's pH value and the total phosphorus quite are small in the soil fertility contribution.

碱解氮、全氮、速效钾和有机质是土壤肥力因子分析中的主成分，酸碱度和全磷在土壤肥力的贡献中比较小。

The hydrolyte-salt was reduced 0.29g/kg by phosphogypsum and the organic was increased 28.89mg/kg by chicken manure.5. The pH was reduced by the distiller's grain of 9kg/m~2;the organic and hydrolyte- nitrogen were increased by the distiller's grain of 6kg/m;the exchangeable sodium percentage was reduced by the distiller's grain of 3kg/m;the effectual- phosphorus was increased by the chicken manure of 3kg/m;the hydrolyte-salt was reduced by phosphogypsum of 0.6kg/m~2 were patency.

剂量为9kg/m~2的酒糟降低土壤pH值最明显；剂量为6kg/m~2的酒糟增加土壤有机质和水解性氮含量最多；剂量为3kg/m~2的酒糟降低土壤碱化度最显著；剂量为3kg/m~2的鸡粪增加土壤有效磷含量最多；剂量为0.6kg/m~2的磷石膏，降低土壤水溶性盐含量最显著。

This research aims at indicating the influence rule of hydrophyte silt on the nitrogen and phosphorus transformation in soil treatment and restoration systems. Then provide basis for the harvestry in the operation and management of these systems.

为揭示含植物的土地处理与修复系统中植物衰亡对系统中氮和磷转化的影响规律，为此类系统运行管理中植物收割与否提供依据。

This article submits some suggestions about the effect of the hydrophyte s on wastewater and lake treatment by summaring the hydrophyte s' purging to all kinds of pollutants such as nitrogen,phosphorus,heavy metal and deleterious organic.

随着经济的发展、工农业废水的排放，水体被大量污染。通过水生植物对氮、磷，重金属及有毒有机物等各类污染物的清除作用的了解。对水生植物在废水处理和湖泊治理方面提出了相应的建议。参4

DETERMINATION OF AMMONIACAL NITROGEN CONTENT IN THE PRESENCE OF OTHER SUBSTANCES WHICH RELEASE AMMONIA WHEN TREATED WITH SODIUM HYDROXIDE.

在氢氧化钠作用下产生的氨的其它游离物质中的氨型氮含量的测定。

Although a typical measurement time using nitrogen carrier gas is 24 hours, very hygroscopic materials

尽管采用氮载气的标准测量时间为24 个小时，但是高吸湿的材料例如纤维素，或者

B3LYP /aug-cc-pvDZ level of theory is applied to study the geometric structures, hyperconjugation and exchange repulsion of 13 isoelectronic equivalents of benzene obtained by successive replacement of CH groups by nitrogen atoms in benzene. More attention is paid to discussing how the energetic properties change upon the number of N atoms.

采用密度泛函理论的B3LYP方法在aug-cc-pvDZ基组上研究了13种苯及其含氮等电子体化合物的分子结构、能量和异构体相对稳定性，重点考察了含氮量对化合物含能性质的影响。

B3LYP/aug-cc-pvDZ level of theory is applied to study the geometric structures, hyperconjugation and exchange repulsion of 13 isoelectronic equivalents of benzene obtained by successive replacement of CH groups by nitrogen atoms in benzene.

采用密度泛函理论的B3LYP方法在aug-cc-pvDZ基组上研究了13种苯及其含氮等电子体化合物的分子结构、能量和异构体相对稳定性，重点考察了含氮量对化合物含能性质的影响。

The result indicates that the hyperconjugation effect from lone pairs on nitrogen atoms to germinal N-N bonds can play an important role in the N-N bond length. The N-N bond length displays reverse dependence on the charge density in bond critical points obtained from AIM.

NBO分析表明N原子孤对电子到相邻的氮氮键的超共轭作用是影响氮氮键长变化的主要因素，AIM计算的氮氮键的键临界点电荷密度与键长呈反比关系。

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％。