| 单词 | radiation |
| 释义 | radiation n 1 [U] (a) (the sending out of) heat, energy, etc in the form of rays （热、 能等的）放射; 辐射的热、 能等 a combination of radiation and convection, eg in a gas fire 辐射和对流的结合（如在煤气炉中）. (b) (the sending out of) rays and atomic particles from radioactive substances （自放射性物质中放射出的）射线和原子粒子; 放射; 放射现象 a low/high level of radiation 低[高]强度辐射 [attrib 作定语] Some cancers are treated by radiation therapy. 有些癌症可用放射疗法治疗. 2 [C] thing that is radiated, esp radioactive particles 放射物; （尤指）放射性微粒, 放射线 radiations emitted by an X-ray machine X射线机放射出来的放射线. |
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