【Key words】 fallout radionuclides; compound trace; nuclides ratio ; soil erosion; sediment sources
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nuclides activity ratio 核素比活度
nuclides ratio
核素比值
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The principle and characteristics of the nuclides ratio technology are introduced , using several nuclides compoundly to distinguish soil erosion processes and to estimate soil erosion rate ;
阐述了核素比率应用的原理、特点及其能更为敏感地反映土壤侵蚀速率和过程等优点；
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