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单词 radioactivity
释义

radioactivity

听听怎么读
英 [?re?d????k't?v?t?]
美 [?redio?k?t?v?ti]
是什么意思
  • n.

    放射(性);辐射能;

  • 英英释义

    radioactivity[ ,reidi?u?k'tiv?ti ]

    • n.the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

      同义词:radiation

    学习怎么用

    双语例句

    用作名词(n.)
    1. Radioactivity is a special quality of radium.
      放射性是镭的一种特性。
    2. The soil contains 30 times the acceptable level of radioactivity.
      这片土壤受到了高于标准30 倍的辐射。

    权威例句

    Air chemistry and radioactivity
    Air Chemistry And Radioactivity
    Air chemistry and radioactivity
    Atmospheric Composition. (Book Reviews: Air Chemistry and Radioactivity)
    Stratospheric-tropospheric exchange based on radioactivity, ozone and potential vorticity
    Fluorographic detection of radioactivity in polyacrylamide gels with the water-soluble fluor, sodium salicylate.
    The Preparation of 131I-Labeled Human Growth Hormone of High Specific Radioactivity
    THE PREPARATION OF 131I-LABELLED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY
    THE PREPARATION OF I-131-LABELLED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY
    THE PREPARATION OF ?1?3?1I-LABELED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY
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