radioactivity
英 [,re?d????k't?v?t?]
美[,red?o?k't?v?ti]
- n. 放射性；[核] 放射能力；[核] 放射現(xiàn)象
CET4CET6中低頻詞暢通詞匯
詞態(tài)變化
形容詞:?radioactive;
英文詞源
- radioactivity (n.)
- 1899, from French radioactivité, coined 1898 by the Curies; see radioactive.
雙語例句
- 1. the process of decontaminating areas exposed to radioactivity
- 清除受放射污染地區(qū)有害物質(zhì)的過程
來自《權(quán)威詞典》
- 2. The soil contains 30 times the acceptable level of radioactivity.
- 這片土壤受到了高于標(biāo)準(zhǔn)30倍的輻射.
來自《簡明英漢詞典》
- 3. The site was found to be contaminated by radioactivity.
- 發(fā)現(xiàn)此地受放射線污染.
來自《簡明英漢詞典》
- 4. They argued that only a negligible rise in atmosphere radioactivity resulted from the test.
- 他們辯解說,由這次試驗(yàn)所造成的大氣層放射活動(dòng)的增加是微不足道的.
來自《簡明英漢詞典》
- 5. The level of radioactivity in the soil was found to be above recommended limits.
- 土壤的輻射水平被發(fā)現(xiàn)超過規(guī)定的限度.
來自《簡明英漢詞典》