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- In addition, carbon and nitrogen isotope and its ratio was important indicator in the riverine biogeochemistry study. 另外碳氮同位素及其比值在当前的河流有机质生物地球化学研究中仍起着非常重要的示踪作用。
- Yi X F, Li L X, Zhang X A, Zhao L, Li M C.Influence of artificial food on stable carbon and nitrogen isotope composition of Plateau Pikas. 易现峰;李来兴;张晓爱;赵亮;李明财.;人工食物对高原鼠兔稳定性碳和氮同位素组成的影响
- As an effective tracing method, stable nitrogen isotope is significant for studying the nitrogen cycling, especially for identifying source of nitrogen pollution. 稳定氮同位素作为一种有效的示踪手段，在研究氮循环特别是污染氮源的识别方面有重要意义。
- Nitrogen isotope geochemistry in minerals and rocks has not been fully studied,primarily because of very lower(<1000 ppm) concentration of nitrogen in the crustal rocks and the difficulty to extract nitrogen from silicate minerals and rocks. 氮同位素地球化学在固体地球科学研究很少被关注;主要是由于在地壳岩石中氮丰度很低(<1000 ppm)和氮难于从硅酸盐中提取出来。
- New Paleo-tracers and Tracer Calibrations: Nitrogen Isotopes, Silicon Isotopes, ... 17新的古示踪剂和示踪剂校正；氮同位素、矽同位素...
- Nitrogen isotopic technique was used to study the situation and seasonal change of nitrogen pollution in inflowing rivers and an outflowing river of Hongfeng Lake in this paper. 利用氮同位素技术对贵州红枫湖各输入、输出河流氮污染状况和季节性变化规律进行了研究,并通过对输入河流和输出河流的氮对比,探讨红枫湖的氮负荷变化。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- SEASONAL VARIABILITY OF STABLE CARBON AND NITROGEN ISOTOPE OF SUSPENDED PARTICULATE MATTER IN THE CHANGJIANG RIVER 长江悬浮颗粒物中稳定碳、氮同位素的季节分布
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- MICROBIAL EFFECT ON NITROGEN CYCLE AND NITROGEN ISOTOPE FRACTIONATION ON THE EARTH'S SURFACE--A REVIEW 地表环境氮循环过程中微生物作用及同位素分馏研究综述
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- NITROGEN ISOTOPE STUDIES ON SEASONAL NITROGEN POLLUTION OF INFLOWING RIVERS OF HONGFENG LAKE, GUIZHOU PROVINCE 氮同位素示踪贵州红枫湖河流季节性氮污染
- stable carbon and nitrogen isotopes 稳定碳氮同位素
- stable nitrogen isotopic analysis 稳定氮同位素分析
- Analysis of the Nitrogen Isotope Compositions in Natural Gases by Gas Chromatography-Mass Spectrometry 天然气中氮同位素组成的气相色谱-质谱分析
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- Applications of nitrogen isotope techniques: The prerequisite analysis of soil organic nitrogen as sources of nitrate contamination of groundwater 氮同位素技术的应用:土壤有机氮作为地下水硝酸盐污染源的条件分析
- USING NITROGEN ISOTOPE TECHNIQUES TO IDENTIFY THE SOURCES OF THE NITRATE CONTAMINATION TO THE GROUNDWATER BENEATH SHIJIAZHUANG CITY 利用氮同位素技术识别石家庄市地下水硝酸盐污染源
