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- isotope ratio tracer method 同位素比示踪物法
- isotope ratio tracer 同位素比示踪法
- Stable isotope ratio analysis is an effective method for the identification of fruit juice adulteration. 稳定同位素分析法就是根据这种差异对掺假果汁进行准确鉴别的有效方法。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气。
- The atmospheric helium isotope ratio: Is it changing? 大气氦同位素比率在变化吗?
- The distributions and characteristics of non-metallic micro-inclusions of GCr15 and SS400 casting slabs in process of BOF-LF-VD-CC were analyzed by metallographic volume ratio method,in virtue of tracer method and electronic microscope. 借助扫描电镜和示踪法,利用金相学体积率法对BOF-LF-VD-CC流程生产的GCr15方坯连铸轴承钢和SS400板坯连铸中碳钢中非金属显微夹杂物的类型、特点、数量和分布进行了分析。
- Artificial tracer method has been used to investigate dam leakage problem broadly. 人工示踪方法已在堤坝渗漏探测中得到很多应用。
- By using magnetic tracer method, we can measure the gastro-magnetic field which is declined with time. 用磁性示踪法测出胃磁场随时间的衰减曲线,发现一些胃病患者的衰减曲线具有特异性。
- There are differences between natural and adulterated juices in stable isotope ratio. 天然果汁与掺假果汁之间在稳定同位素比率方面存在着差异。
- The pressure distributions of the Francis pump-turbine runner aremeasured in model test and the flow is visualized by using tracer method. 在小型混流式水泵水轮机模型装置上对转轮流道的压力分布进行了实测，并通过流动可视化摄制了翼间流动的图像；
- To be sure, some scientists suggest that life could have evolved differently on Titan than on Earth or that the inorganic isotope ratio may be different there. 不过，还是有些科学家指出，可能是泰坦和地球上的生命演化过程不同，或是无机同位素比率不一样。
- Analytical services include potassium-argon age determinations, stable isotope ratio analyses, radiocarbon age determinations as well as other radiometric analyses. 分析包括钾-氩测年，稳定同位素丰度分析，放射性碳测年，以及其他放射性分析。
- The connections 0f the cuneiformis nucleus (CnF) with the lower part of brainstem and the spinal cord were studied in rats by using anterograde autoradiographic method and retrograde horseradish peroxidase tracer method. 用HRP法和ARG法研究了大鼠楔形核（CnF）与下位脑干及脊髓之间的传入和传出纤维联系。
- A brief introduction was given to the concept of natural tracer method, the characteristics of temperature and conductance distribution in groundwater, and the theory of heat-source method and conductance method for leakage detection. 摘要简述天然示踪法的概念、地下水温度场和电导场分布特征、热源法原理及电导渗漏测试原理。
- A method by cumulative intensity of ion current to analyse isotopic ratio is proposed in present paper. 本文介绍了离子流强度累计测定同位素比的方法。
- In the conventional tracer method, the flow velocity is determined by the time for the tracer to cover a certain distance, and an arbitrarily chosen empirical correction coefficient. 示踪法测量结果需采用经验系数修订才能得到水流速度,而经验系数受多种因素的影响,在不同的条件下如何使用,有较大的随意性。
- An obvious restraint in the use of isotope ratios results from the need to employ mass spectrometers. 使用同位素比值法有着一个明显的局限因素，就是要用质谱仪进行分析。
- The paper discussed several perspectives of isotopic tracer method including the development,advantages and disadvantages,the basic operation,applications in animal digestion and metabolism. 近年来,同位素示踪技术得到迅速发展,并广泛应用于农业,对生物领域的研究与发展起到了重要作用。
- Study of Isotope Tracer Method in Two-dimension Rock Fissured Network Seepage 二维岩体裂隙网络渗流同位素示踪研究
- CAN STABLE ISOTOPE RATIOS PROVIDE FOR COMMUNITY-WIDE MEASURES OF TROPHIC STRUCTURE? 稳定性同位素与群落营养结构?
