• 给出一种室内快速运动球体作为样品测量室内氡射气活度方法

    A new method of measuring indoor radioactivity of radon is presented by using the indoor fast-moving ball as the sample of a radioactive substance.

    youdao

  • 给出一种室内快速运动球体作为样品测量室内氡射气活度方法

    A new method of measuring indoor radioactivity of radon is presented by using the indoor fast-moving ball as the sample of a radioactive substance.

    youdao

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