同位素差异 meaning in English

isotopic difference
isotopic differentiation

The tracing of lead isotopes indicates different matrixes of lead isotopes have great difference , which makes an pb isotope tracing is much easier to identify the sources of pb
中国地质大学(北京)博士论文弱信息铅同位素示踪发现，蛟龙掌矿区各地质母体铅同位素差异明显，利于进行同位素示踪。
The pb isotopes extracted by nh4c1 and hoac in the background soil are slightly different from that in soil above the known ore bodies . but the different is quite small for the pb anomalies extracted by both solvents is much weak . in contrast with different matrix , it can be
背景区土壤氯化氨和醋酸提取铅同位素组成与矿化区有所差异，但由于矿带上方铅元素异常弱，范围窄，因此，其同位素差异相对较小，比较而言，醋酸提取铅差异相对较大。