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- Influence of different nitrogen concentrations on the growth and physiological characteristics of Chlorococcum sp. 不同氮浓度对绿球藻生长及生理特性的影响。
- Controlled Atmosphere an atmosphere in which oxygen, carbon dioxide and nitrogen concentrations are regulated, as well as temperature and humidity. 箱体内气体、温度、湿度调控。
- Nitrogen absorption rate of EAN and NH + 4 was significantly higher than that of NO - 3 in different nitrogen concentrations. 结果表明 ;在不同N浓度下 ;小麦对增铵营养和NH+ 4的吸收速率显著高于NO-3 营养 ;且在较高浓度下 ;增铵营养处理具有更强的吸收优势 .
- Change of phosphorus and nitrogen concentration in the leakage loss. 渗漏流失氮磷浓度的变化。
- Higher triacylglyceride content in the lipid was observed at low nitrogen concentration. 在低氮源浓度下,油脂中三酸甘油脂之含量较高。
- While the nitrogen concentration was 2 mg/ L,this effect was no significant different between the periphyton and phytoplankton. 而当氮浓度较低时(2 mg/L),浮游藻类与附着藻类对N/P的响应则没有显著的差异;
- Cumulative removal ratio of nitrogen was closely related with nitrogen concentration，working time and biomass of periphyton. 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。
- Abstract: CH3Cl is usually used as microbe activity inhibiter in soil system for nitrogen concentration variation study. 摘要：氯仿是土壤的营养物释放实验中常用的微生物活性抑制剂。
- Results indicate that the optical band gap of the CN x films is decreased with the increasing nitrogen concentration, accompanied with the reflectance increase of the films. 结果表明：随着薄膜中氮含量的增加，碳氮薄膜的光学禁带宽度减小，红外反射率增加。
- The nitrogen concentration and nitrifying bacteria in the soils treated with 30% organic matter or traditional fertilization were higher than those in the other soils. 施用30%25有机肥和习惯施肥处理的氮素养分和硝化细菌数量较多，硝化细菌数量与有机质含量也无相关；
- The nitrogen concentration and nitrifying bacteria in the soils treated with 30% organic matter or traditional fertilization were higher than the other soils. 施用30%25有机肥和习惯施肥处理的氮素养分和硝化细菌数量较多，硝化细菌数量也不与有机质含量相关；
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- CN x films on silicon (111) wafer, quartz and Ti/C substrate with nitrogen concentration up to 20 at% have been prepared by a new plasma deposition technique, filtered arc deposition. 本文采用真空磁过滤弧沉积技术，在Si（111）、石英及Ti/C衬底上制备得到非晶碳氮（CNx）薄膜。
- The analysis of nitrogen concentration changes in each section through LD-LF-VD-CC pipeline steelmaking process indicates that the most important process of nitrogen content controlling is the BOF tapping process and LF refining process. 针对鞍钢-炼钢LD-LF-VD-CC的管线钢冶炼工艺,对炼钢各工序氮含量变化进行取样分析。
- The results show that nitrite nitrogen concentration influences the removal of TN greatly;the rate of TN removal and pH increase with the increase of nitrite nitrogen concentration. 以生物膜滤池为厌氧氨氧化反应器,考察了进水中的亚硝酸盐氮浓度对总氮去除率的影响。
- Based on the discussion the material of caprolactam process and the data of wastewater quality, the paper presents that the wastewater is of high nitrogen concentration and high organic concentration. 在本研究中首先分析了石家庄化纤公司己内酰胺的生产工艺及出水水质状况，指出该生产废水属高含氮高浓度的有机工业废水。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- In addition, the effect of nitrogen status on leaf SPAD was quantified by the value of leaf nitrogen concentration, and the relationship between SPAD and RGB was described with linear equation. 并基于叶片氮含量表达了氮素供应水平对叶片SPAD值变化规律的影响，同时用线性方程描述了叶片SPAD值与RGB值之间的定量关系。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
