单词盒子

background radioactivity

B 开头单词

基本解释

  • [能源科学技术]本底放射性

英汉例句

    双语例句

  • At the surface, radioactivity of the conglomerates is locally as high as 30 X background.
    在地表， 砾岩的局部地段的放射性高达30倍本底值。
  • The results showed that the radioactivity levels of each nuclide in Yangtze River water system were still lower than that of background, and did not cause contamination.
    结果表明，各核素均未对长江造成污染，长江水系放射性浓度仍在本底水平。
  • The results show that the radioactivity level of varied water bod-ies of the city was within normal natural background.
    调查结果表明，上海市各类水体中天然放射性核素浓度属正常本底水平。

词组短语

    短语

  • background natural radioactivity 天然放射性背景
  • background d radioactivity 本底放射性
  • natural background radioactivity 天然本底放射性
  • radioactivity background 放射性本底
  • natural radioactivity background 天然放射性本底

专业释义

    能源科学技术

  • 本底放射性