half-life

1. Business opportunities have a half-life, just like uranium.: 商业机会有半衰期，就像铀一样。

2. Water and fish through a river, the fish only Half-Life.: 水和鱼经过了一条大河，鱼只剩下半条命。

3. However, if the half-life is increased, the situation changes.: 然而，如果半衰期增加，情况会改变。

4. This radioactive element has a half-life of some 5, 700 years.: 这种放射性元素半衰期约为5700年。

5. Iodine-131 has a half-life of eight days and is quite dangerous to human health.: 碘-131的半衰期为8天，对人身健康危害相当大。

6. Radioactive iodine has a half-life of eight days and decays naturally within weeks.: 放射性碘的半衰期为八天，几周内自然衰变。

7. THE half-life of official opposition to nuclear power in Britain has been very short.: 在英国，官方反对使用核能的半衰期很短。

8. So, the half-life is just the time that it takes for half of the reactants to disappear.: 半衰期实际上是,一半反应物消失的时间。

9. Probably, the first Half-Life video game was created on the base of the one of such objects.: 大概第一部“半条命”电视游戏是以一个这样的场所为基地设计的。

10. So in one universe, the atom decays within the first half-life, and you have an ex-cat. Or ex-qat.: 在一个宇宙中，原子在第一个半衰期中衰变了，于是你有了一只前猫。

11. Iodine 131 has a half-life of eight days, meaning that every eight days it loses half its strength.: 碘131有八天的半衰期，这意味着每八天其能量就下降一半。

12. Over the long term, the big threat to human health is cesium-137, which has a half-life of 30 years.: 长期以来，对人体健康的一大威胁就是铯137，它的半衰期为三十年。

13. When you walk throw me that half-life I now give you, you should have a complete life, full of happiness.: 你走的时候扔给我那半条命我现在还给你，你应该有完整的生命，完整的幸福。

14. The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.: 这座城市面临的最大问题就是处理铯—137，这是一种半衰期为30年的放射性同位素。

15. Taking stable iodine as a pill blocks the uptake of the hazardous radioisotope, which has a half-life of 8 days.: 服用稳定的碘元素会阻止危险碘同位素的摄入，碘同位素的半衰期仅为八天。

16. Cesium-137, with a half-life of 30 years, is another dangerous substance emitted in a full-scale nuclear meltdown.: 核反应堆完全熔解后，会释放出另一种危险物质铯- 137。铯- 137的半衰期为30年。

17. The danger of nitrogen-16 is an issue only for plant workers and operators because its half-life is only seven seconds.: 氮16的危险只针对于核电站工人和机器操作者而存在，因为它的半衰期只有七秒钟。

18. One of the first tunnels. Probably, the first Half-Life video game was created on the base of the one of such objects.: 首批隧道之一。大概第一部“半条命”电视游戏是以一个这样的场所为基地设计的。

19. It accumulates in the cooling water of nuclear reactors and is often vented in small amounts to the environment. Its half-life is 12 years.: 氚聚集在核反应堆的冷却水中，通常以微量排放到环境中，其半衰期为12年。

20. However, iodine-131 has a short half-life of eight days, which means it will decay away completely in the environment in a matter of months.: 但碘- 131则不同，它的半衰期是八天，意味着它需要数月时间才会完全消失。

21. Radioactive iodine in food is of immediate concern, but it has a relatively short half-life and will naturally decay over a short time frame.: 食品中的放射性碘直接引起人们的关注，但是它的半衰期相对较短并将在短时间内自然衰变。

22. Anyway, if you were to open this imaginary box after one half-life for the atom, you would have 1 a non-kitty or 2 a living-albeit-unreal cat.: 反正，如果你在原子的一个半衰期后打开这只想象中的盒子，你可能会得到1一只“非猫”或者2一只活着且不存在的猫。

23. It is often said that nuclear waste has a half-life of 100, 000 years…it is worth remembering that Stonehenge was built only 4, 000 years ago.: 要知道，核废料的半衰期是100000年——而英国的巨石阵仅有四千年的历史。

24. As with radioactivity, stories have a half-life-in other words a period by which half of newly promoted stories are relegated to a nether page.: 与放射性一样，故事有一个半衰期-换言之，就是新推荐的故事从首页到被下放的周期。

25. “The more we seek satisfactions in material goods, the less we find them there,” Ryan says. “The satisfaction has a short half-life -- it’s very fleeting.”: “越想在物质生活上寻找满足感，越难找到，”瑞安说：“这种满足感半衰期很短，很容易消失。”

26. Better still, it became apparent to him that one could use radioactivity as a clock, with the half-life of a decay series enabling us to calculate the age of a rock.: 更妙的是，显然人们可以用放射性作为时钟，用衰变系列的半衰期计算出岩石的年龄。

27. The developing thyroid gland absorbs iodine like a sponge; taking stable iodine as a pill blocks the uptake of the hazardous radioisotope, which has a half-life of 8 days.: 处于发育阶段的甲状腺就如同海绵一般源源不断的吸收碘；服用稳定的碘元素会阻止危险碘同位素的摄入，碘同位素的半衰期仅为八天。

28. The developing thyroid gland absorbs iodine like a sponge; taking stable iodine as a pill blocks the uptake of the hazardous radioisotope, which has a half-life of 8 days.: 处于发育阶段的甲状腺就如同海绵一般源源不断的吸收碘；服用稳定的碘元素会阻止危险碘同位素的摄入，碘同位素的半衰期仅为八天。

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