radioactive sources是什么意思 radioactive sources怎么读
radioactive sources的用法和样例
- According to the South China Morning Post reported Guigang City was a cement factory security permits, the factory will be two sources of stolen to sell as scrap metal.
据南国早报报道贵港市一家水泥厂的保安竟监守自盗，将厂内两枚放射源偷出当作废铁卖掉。
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