radioactivity的意思

radioactivity

英式音标[,redɪoæk'tɪvəti]
美式英标[,reɪdɪəʊæk'tɪvɪtɪ]

基本解释

n. 放射性；[核] 放射能力；[核] 放射现象

英文词源

radioactivity (n.): 1899, from French radioactivité, coined 1898 by the Curies; see radioactive.

实用例句

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

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.

3. The site was found to be contaminated by radioactivity.: 发现此地受放射线污染.

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.

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.

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