氡及其子体是天然放射性系列中的铀系、钍系衰变产生的，是人类受天然辐射主要的来源之一。
...关键词：氡及其子体；外周血淋巴细胞；气管-支气管上皮细胞；HPRT基因位点突变 [gap=1247]Key Words：radon and its daughters；peripheral blood lymphocyte；trachea-bronchial epithelial cell；HPRT gene locus m..
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...离室,α辐射仪,氡及其子体 [gap=621]Keywords】: Pulse-ionization chamber,α-radiation meter,Radon and its decay products ...
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3.1 地下建筑 underground space 3.2 氡及其子体radon and its progenies 氡是天然放射性惰性气体，有222Rn、220Rn、219Rn三种同位素。
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氡及其子体浓度 radon and its daughters concentration
目的研究氡及其子体对小鼠造血系统的影响。
Objective to study toxic effect of inhaled radon and its progeny on blood and bone marrow cells of mice.
氡及其子体的运移规律研究是基础理论课题之一。
Studying the self migration law of Rn and its daughters is one of basic theoretical subjects.
目的研究氡及其子体吸入对大鼠肺与血细胞的氧化应激损伤。
Objective To study the REDOX damage of lung and blood cells in rats inhaled radon and its progeny.
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