radioactivity
英 [,reɪdɪəʊæk'tɪvɪtɪ]
美 [,redɪoæk'tɪvəti]
英文词源
- radioactivity (n.)
- 1899, from French radioactivité, coined 1898 by the Curies; see radioactive.
双语例句
- 1. the process of decontaminating areas exposed to radioactivity
- 清除受放射污染地区有害物质的过程
来自《权威词典》
- 2. The soil contains 30 times the acceptable level of radioactivity.
- 这片土壤受到了高于标准30倍的辐射.
来自《简明英汉词典》
- 3. The site was found to be contaminated by radioactivity.
- 发现此地受放射线污染.
来自《简明英汉词典》
- 4. They argued that only a negligible rise in atmosphere radioactivity resulted from the test.
- 他们辩解说,由这次试验所造成的大气层放射活动的增加是微不足道的.
来自《简明英汉词典》
- 5. The level of radioactivity in the soil was found to be above recommended limits.
- 土壤的辐射水平被发现超过规定的限度.
来自《简明英汉词典》