| 单词 | radiation |
| 释义 | radiation 2 ENTRIES FOUND: Learner's definition of RADIATION [noncount] 1 : a type of dangerous and powerful energy that is produced by radioactive substances and nuclear reactions辐射
2 medical : the use of controlled amounts of radiation for the treatment of diseases (such as cancer)放射疗法；辐射疗法
— called also radiation therapy, radiotherapy 3 a : energy that comes from a source in the form of waves or rays you cannot see（波或射线的）辐射能
b technical : the process of giving off energy in the form of waves or rays you cannot see辐射的过程
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