采集土壤样品，在实验室进行土壤镭含量、含水量、孔隙度和粒径分布等物理性质测量。
Soil radium contents, water contents, soil porosity and grain size were concretely analysed in our laboratory.
采集土壤样品，在实验室进行土壤镭含量、含水量、孔隙度和粒径分布等物理性质测量。
Soil radium contents, water contents, soil porosity and grain size were concretely analysed in our laboratory.
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