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- The parent uranium has been partitioned from its decay products. 铀母体与其衰变产物分离。
- Radon and its daughters not only are the decay product of natural radioactive uranium series and thorium series, but also are one of natural radiation source. 氡及其子体是天然放射性系列中的铀系、钍系衰变产生的,是人类受天然辐射主要的来源之一。
- Either of two decay products of thorium,mesothorium I,an isotope of radium,or mesothorium II,an isotope of actinium. 新钍钍的两种放射性生成物之一，即新钍1号，它是镭的同位素，或新钍2号，它是锕的同位素
- Either of two decay products of thorium, mesothorium I, an isotope of radium, or mesothorium II, an isotope of actinium. 新钍钍的两种放射性生成物之一，即新钍1号，它是镭的同位素，或新钍2号，它是锕的同位素
- The results showed that the risk of lung cancer increased with accumulated radon decay products(WLM),exposure years of radon,first radon progeny age attained. 结果表明：调整年龄、粉尘或砷暴露后，随累积氡子体暴露量（WLM）增大、暴露年限越长、首次氡子体暴露年龄越小患肺癌的危险性越大。
- NUCLEAR ENERGY. MEASUREMENT OF RADIOACTIVITY IN THE ENVIRONMENT-AIR. RADON 222 AND ITS SHORT-LIFE DECAY PRODUCTS IN THE ATMOSPHERIC ENVIRONMENT: THEIR ORIGINS AND MEASURING METHODS. 原子能词汇。周围空气中辐射测量。在大气环境中氡222和其短程升降损害产物:它们的来源和测量方法。
- The immediate product of the radioactive decay of an element. 继承元素某种元素放射性衰变的直接产物
- What made the Roman Empire decay? 罗马帝国为何衰亡？
- The new product became a goldmine for the company. 该项新产品成了该公司的聚宝盆。
- Old civilization may fall into decay. 古老的文化可能会渐渐衰落下去。
- The empty house has fallen into decay. 那座空房已成一片颓垣。
- The tree exhibited signs of decay. 那棵树显示腐蛀的迹象。
- I can't say I'm at all pleased by your product. 我不能说对你们的产品满意。
- I think you may be interested in our new product. 我想贵公司可能会对敝公司的新产品感兴趣。
- A product of a document copying process. 文件复制过程的一种产品。
- His mental decay is distressing. 他的智力衰退令人苦恼。
- Growth and decay are vital processes. 生长和衰亡是生命过程。
- The product is on trial in our laboratory. 该产品正在由我们实验室做测试。
- The dentist could detect no decay in her teeth. 牙医检查了她的牙，未见有龋齿。
- Our pressure vessel is licensed product. 我厂生产的压力容器是授权生产产品。
