radiation
radiation 英 [ˌreɪdiˈeɪʃn] 美 [ˌrediˈeʃən]
n. 辐射;放射物
名词复数:radiations
- Radiation is energy transmitted in waves or a stream of particles. The first thing you think of as radiation is probably X-rays, but what cooks your food in the microwave oven is also radiation.
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- n. 辐射;放射物
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1. high levels of radiation that damage cells
损害细胞的高强度辐射
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2. radiation sickness
辐射病
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3. the radiations emitted by radium
镭释放出的放射线
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4. ultraviolet radiation
紫外线辐射
- radiation (n.) mid-15c., "act or process of radiating," from Middle French radiation and directly from Latin radiationem (nominative radiatio) "a shining, radiation," noun of action from past participle stem of radiare "to beam, shine, gleam; make beaming," from radius "beam of light; spoke of a wheel" (see radius). Meaning "rays or beams emitted" is from 1560s. Meaning "divergence from a center" is 1650s.
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