1.
Nitrogen 15 can reveal the extent to which the individual relied on animal or plant protein.
氮15会透露食物中动植物蛋白质的比例。
2.
Study on Tobacco Plant s Absorption and Distribution of Nitrogen by Using ~(15)N;
利用~（15）N研究烤烟氮素吸收分配规律
3.
Passivating Treatment of Multiple Nitriding Layer for 15-5PH Stainless Steel
15-5PH不锈钢多元渗氮层的钝化处理
4.
Effects of Different Nitrogen Fertilizer Application Rate and Different Topdressing Way on Yield and Efficiency for Maize Zhongyu 15
氮肥用量和追肥方式对玉米中玉15产量和氮肥利用效率的影响
5.
THE ABSORPTION,UTILIZATION AND DISTRIBUTION OF NITRATE ~(15)N AND AMMONIUM ~(15)NIN Populus Tomentosa SEEDLINGS
毛白杨对~(15)N-硝态氮和铵态氮的吸收、利用及分配
6.
STUDY ON THE SOLDER WIRE FOR SUBMERGED-ARC AUTOMATIC WELDING OF 15MnVN_q BRIDGE STEEL
15锰钒氮桥梁钢埋弧自动焊焊接材料的研究
7.
Infrared Absorption Spectroscopy of ~(15)N Substitutd Nitrous Oxide
~（15）N替代氧化二氮分子的红外吸收光谱
8.
Research on the Chiral Resolution of N-labeled ~(15)S-ben-D,L-cysteine by Aminoacylase
酶法拆分氮-15标记S-苄基-半胱氨酸的研究
9.
Distribution and δ~(15)N Character of Nitrogen in paddy soils located in different regions
不同区域水稻土的氮素分配及δ~(15)N特征
10.
The molecules of nitrogen and oxygen respectively are 14 times and 16 times more massive than the hydrogen molecules.
氮分子和氧分子的质量比氢分子分别大13和15倍。
11.
The amount of nitrogen fertilizer had been steadily increased along with the development of the indica-japonica cross varieties during the last15 years.
过去15年中随着籼-粳杂交品种的发展，氮肥用量持续增长。
12.
NITROGEN-15 TRACER STUDIES OF THE MECHANISM OF FORMATION OF RDX
用氨基氮-15同位素示踪原子法研究黑索今的生成反应机理
13.
A～2/O Craft Sewage Biological Denitrification Characteristic Analysis and Technological Experimental Study of ～(15)N Identification;
A～2/O工艺污水生物脱氮特性分析与～（15）N标识技术试验研究
14.
～(15)N-identified Experimental Research on Biological Denitrification in the Wastewater and Analysis of Biological Denitrification Process;
污水生物脱氮～（15）N标识实验研究与生产工艺分析
15.
The Characteristics of ～(15)N Absorption and Utilization in Strawberry and Influence of Nitrogen on the Process of Physiology Maturity of Its Fruit;
草莓～(15)N吸收利用特性及氮对果实成熟生理进程的影响
16.
Effects of Body Mass Index and Preoxygenation in the 15°Head-Up Position on Tolerance to Hypoxia;
体重指数和头高15°倾斜位吸氧去氮对患者耐受缺氧的影响
17.
The Effect of Zeolite on Nitrogen Nutrient of Corn Using ~(15) N-Isotope Dilution Method;
用~(15)N同位素稀释法研究沸石对氮肥利用率的影响
18.
Temporal and Spatial Variations of the Nitrate-nitrogen Sources in an Underground River Using ~(15)N Isotope Technique
基于~(15)N同位素示踪技术的地下河硝态氮来源时空变化特征分析