Warning: file_put_contents(): Only 0 of 5056 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 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_沉淀汉英词典
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