单词：isotopic fractionation
isotopic fractionation的用法和样例：
例句
- The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis.同位素分馏效应是影响氢同位素准确分析的主要因素。
- The carbon isotope fractionation effect of samples from Jincheng is more apparent than that from Changji, which is mainly attribute to the different pore structure of coal samples.晋城地区煤样解吸气体的同位素分馏效果比昌吉地区的明显，孔隙结构差异是一个主要影响因素。
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