英语词汇“naturally occurring radioactive substance”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

单词	naturally occurring radioactive substance
释义	naturally occurring radioactive substance
随便看	defence job的意思 defenceless的意思 defencelessly的意思 defenceless的意思 defenceless的意思 Defenceman的意思 defence man的意思 Defence Mapping Agency的意思 defence material的意思 defence measures的意思 defence mechanism的意思 defence mechanism的意思 Defencemen的意思 Defence minister的意思 defence navigation satellite system的意思 Defence Notice的意思 defence of anchorage的意思 defence of a respondent in arbitration的意思 defence of consent的意思 defence of habitation的意思 Defence of India Act的意思 defence of privilege的意思 Defence of property的意思 defence of self的意思 defence of tender before action的意思

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