This paper reports the environmental radiation level in Beijing.

在北京市按网格布点调研了环境辐射水平.

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Experimental data show that radiation level of surroundings depends on the control influence of lithology.

实验数据表明,环境辐射水平受到基底岩性的控制影响.

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This investigation gave background data to appraising radiation level of circulating currencies after applied radiation disinfection.

为今后流通货币应用辐照消毒后的辐射水平的评价提供了本底数据.

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