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[文献書誌] Qiuju Guo: "The Levels of indoor Thoron and its Progeny in Four Areas in China"J. of Nuclear Science and Technology. 38・9. 799-803 (2001)
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[文献書誌] W.Zhuo, T.Iida, X.Yang: "Occurrence of ^<222>Rn, ^<226>Ra, ^<228>Ra and U in Groundwater in Fujian Province, China"J. Environ. Radioactivity. 53. 111-120 (2001)
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[文献書誌] S.Yamamoto, K.Tarutani, T.iida et al.: "Dvelopment of a Continuous Radon Concentration Monitoring System in Underground soil"IEEE Trans. Nucl. Sci.. 48・3. 391-394 (2001)
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[文献書誌] J.Koarashi, H.Amano, M.Andoh, T.Iida, T.Koma: "A New Method for Determining ht Deposition Velocity and Dependence of the Velocity on Environmental Factors"Radiat. Prot. Dosim.. 93・3. 237-243 (2001)