isotopic fractionation

• 同位素分馏,同位素分级

isotopic fractionation的用法和样例：

例句

1. 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。
2. 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。