同位素分馏 meaning in English
isotope fractionation
isotopic fractionation
isotopicfractionation
Examples
- Boron isotope fractionation and its application in environmental study
硼同位素分馏及其在环境研究中的应用 - Carbon isotope discrimination and water use efficiency in different soybean and wheat genotypes
大豆和小麦不同基因型的碳同位素分馏作用及水分利用效率 - The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present , while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency , showing a warmer and wetter climate than today
摘要对滇西腾冲新近纪两种被子植物叶片及其现存对应种的气孔参数和碳同位素组成的综合分析表明：当时的大气co2浓度略高于现在水平；化石种的碳同位素分馏值高于现存对应种，但水分利用效率低于现存对应种；这证明当时的气候条件比当前更为温暖湿润。 - The text lays particular emphasis on the evaluation of the groundwater , involves the groundwater type , groundwater chemical characteristics , the amount of the water resource and the natural groundwater amount by using the method of numerical model after the calculation of the parameters , such as transmissivity , the coefficient of the flexible water release , with the data of the pumping test in the research zone
采用visualmodflow地下水软件进行数学模型的求解。在地下水流数学模型识别和验证后,设计了两种方案进行了地下水的预报。应用同位素分馏原理和质量守恒定律,确定不同含水层中地下水的成因及形成条件,建立本研究区地下水系统的水循环模式;采用模糊综合评价方法对研究区内的水质进行了评价。