The combination of enriched stable isotope tracer studies and activation analysis techniques has become an ideal and reliable technique, especially in the fields of biology and medicine.

浓集的稳定同位素示踪研究和活化分析技术相结合已成为一种理想可靠的技术，在生物医学中更显示出它的特色。

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Effects of covering with new soil on reducing the accumulation of radio-cerium in soybean were studied adopting the isotope-tracer techniques of simulated pollutants.

采用模拟污染物的同位素示踪技术研究了客土覆盖对降低大豆中放射性铈积累的效应。

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