英语词汇“natural radiation background”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	natural radiation background
释义	natural radiation background un.天然放射性本底
随便看	functional competence functional competency functional complement functional complementarity functional complementation functional complementation analysis functional complete function functional completeness functional complexity functional component functional component bases functional components functional components of branchial nerve functional composite functional composite particles functional composite powers functional composites functional composition functional composition analysis Functional compositions functional compound functional compound fertilizer Functional compounds functional comprehensive assessment functional concept