Usually with lower-case initial. A unit of exposure to X or gamma radiation, now defined as equal to the quantity of radiation that gives rise to…
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| 释义 | the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > unit of exposure (1) Roentgen1922 Usually with lower-case initial. A unit of exposure to X or gamma radiation, now defined as equal to the quantity of radiation that gives rise to… |
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英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。