Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/fe84bf6909abe63060a38f7525c03470.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 naturally occurring radioactive material是什么意思，naturally occurring radioactive material的翻译，naturally occurring radioactive material音标、读音、用法和例句_按摩法牛津词典
In fact, standards for NORM (naturally occurring radioactive material) have been observed for years. FORBES: Don't Be Swayed By Faucets On Fire And Other Anti-Fracking Propaganda