isotopic evidence meaning in Chinese

同位素证据

Cycle pattern and renewablity evaluation of groundwater in yinchuan basin : isotopic evidences
银川平原地下水循环及其可更新能力评价的同位素证据
The isotopic evidence indicates that they might be derived from a depleted mantle source , and probably contaminated slightly by continental materials
同位素组成特征表明其来源于亏损地慢源区，可能受到轻微的地壳物质的混染。