| 单词 | Radiation,X |
| 释义 | Radiation,X《英文msh词典》Radiation,X [入口词] Radiation,X [主题词] X-Rays [英文释义] Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release energy - in the same energy range as gamma rays (0.010-10 Mev),but of non-nuclear origin,of shorter wavelength than ultraviolet; soft x-rays or Grenz rays are less penetrating and longer in wavelength than hard x-rays. |
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