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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。

半衰期

1·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。

2·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。

3·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。

4·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。

5·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。