...年第4期—龙源期刊网 关键词】瓷砖；放射性污染；内照射；外照射；防治方法 [gap=539]Key words】Tiles;Radioactivity pollution;Internal radiation;External radiation; Protection measures ..
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Pollution radioactivity 放射性污染
Preventing noise, electromagnetic radiation, and radioactivity pollution ?
防治噪声、电磁辐射、放射性污染。
South Asia, seismic tsunami caused by the radioactivity pollution of Japan, the horror of that self inspire book is popular.
南亚地震海啸，由此引发的放射能污染的恐怖经历的日本，自我启发书很受欢迎。
As compared with the granite stone material, basalt can be safely used on human life living places without radioactivity pollution.
与花岗岩等石材相比，玄武岩石材的低放射性，使之可以安全用于人类生活居住场所，而无放射性污染之虞。
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