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分析了地下处置放射性废物的几个关键问题．通过对处置场所的选择、岩石渗流及放射性核素与岩石的化学反应等问题的论述，揭示了放射性废物地下处置室的安全性取决于对岩石中地下水渗流的有效阻滞．
The key issues for underground disposal of radioactive waste are analyzed. Through the selection of disposal sites, seepage of rocks and chemical reaction between radionuclides and rocks, it is revealed that the safety of the underground disposal chamber of radioactive waste depends on the effective blockage of groundwater seepage in rock.