第三种重要方法是同位素示踪分析。

Radionuclide tracer analysis is a third important method.

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本文介绍了堤坝渗漏探查的同位素示踪技术，包括人工同位素单孔示踪技术和环境同位素示踪分析技术。

This paper introduces isotope tracing technique, including artificial and environmental isotope tracing technique, and its application on the survey of dike and dam leakage.

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在今后的土壤吸附研究中应该结合形态分析和放射性同位素示踪的方法，并加强对根际土壤这一新领域的研究。

In further study, sequential extraction and usage of radioisotopes should be combined with isotherm analysis, and the investigation of heavy metals adsorption by rhizosphere soil should be stressed.

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