1.
Process and Mechanism of Ion-nitriding under the Atmosphere of N_2 and N_2-NH_3;
纯氮、氮—氨离子渗氮工艺和机理研究
2.
An enzyme of nitrogen-fixing bacteria that activates the conversion of nitrogen to ammonia.
定氮酶在固氮细菌中催化氮转化成氨的一种酶
3.
Discharge in Nitrogen: Research on N-doping and Synthesis of Nitrides;
氮气放电在氮掺杂及氮化物合成中的应用
4.
Research on New Process of Ion Nitriding at Pure Nitrogen Atmosphere and Ion Nitriding Mechanism;
纯氮离子渗氮新工艺及离子渗氮机理研究
5.
Study of Nitrogen and Its Related Complexes in the Nitrogen-implanted Silicon;
氮离子注入硅中氮及氮相关复合体的研究
6.
Effects of Nitrogen Application Time on Carbon Assimilate and Nitrogen Translocation and Nitrogen Use Efficiency of Summer Maize
施氮时期对夏玉米碳氮运转及氮肥利用的影响
7.
Experiment Research of New Biological Denitrification Process to Low C/N Wastewater of Nitrogenous Fertilizer Plant
氮肥厂低碳氮比废水生物脱氮新工艺试验研究
8.
Relationship between soil nitrate,nitrogen balance and utilization in rainfed land
旱地土壤硝态氮与氮素平衡、氮肥利用的关系
9.
To treat or combine with nitrogen or compounds containing nitrogen.
硝化用氮或含氮化合物处理或掺以氮或含氮化合物
10.
asymbiotic nitrogen fixatio
非共生固氮（作用）
11.
Simultaneous determination of the total nitrogen,ammonium-nitrogen,nitrite-nitrogen,and nitrate-nitrogen in wastewater by continuous fluxion analysis
连续流动分析法同时测定污水中总氮、氨氮、亚硝酸盐氮、硝酸盐氮
12.
MnN production that nitrogen content is about6.880%～6.902% has been obtained.
获得了含氮高达6.880%6.902%氮化锰产品。
13.
liquid carbonitriding
液体碳氮共渗, 液体渗碳氮化法
14.
Test methods for nitrogen content of nitrogen-doped getter
GB/T6625-1986掺氮吸气剂含氮量测试方法
15.
hydrinde azo dyes
茚满偶氮染料，苯并茂偶氮染料
16.
Mycorhizae perform the function of nitrogen fixation and storage.
菌根起着固氮和贮氮的作用。
17.
Increase of nitrogenous substances, especially urea, in the urine.
氮尿氮物质的增加，特别是尿里的尿素
18.
Study on Adjustment of the Ratio of C to N by Adding N During Straw Turnover
秸秆还田添加氮素调节碳氮比的研究