1.Even bananas contain trace amounts of a radioactive potassium isotope.

即使是香蕉都含有微量钾的放射性同。

2.Tritium is an isotope of what element? - Hydrogen.

氚是哪个元的同 -氢。

3.Did you secure the isotope from L-Corp?

你安置好L公司的同了吗？

4.For one thing, there's more than one isotope — or form — of strontium.

一方面，锶的同或形式不止一种。

5.Using radioactive isotopes, scientists discovered that trees share water and nutrients with others in need.

科家利用放射性同，发现树木会分享水和营养给其他有需要的树。

6.And animals use each nitrogen isotope slightly differently.

动物对每种氮同的使用稍有不同。

7.So the researchers also measured the proportions of different carbon and nitrogen isotopes in whiskers from coyotes.

因此，人员还测量了郊狼胡须中不同碳同和氮同的比例。

8.I injected the stable isotope carbon-13 carbon dioxide gas.

我往他们的袋子中注射了 含有稳定性同碳13的二氧化碳。

9.A radioactive isotope called tritium will remain in the waste water.

氚这种放射性同无法被清除。

10.The researchers base their argument on the ratios of light to heavy nitrogen isotopes in ancient rocks from Australia.

人员是根据澳大利亚古老岩石中重氮同光的比率所得出的结论。

11.They examined fluids seeping out of fractures in a mine and found particular isotopes of the noble gas xenon.

他们查看从矿井裂缝中渗出的液体，从中发现了惰性气体氙的特殊同。

12.The answer lies in a slightly obscure but ingenious field known as isotope geochemistry.

答案在于同地球化，这是个不大知名而又十分奇妙的领域。

13.Nitrogen fertilisers have altered the balance of chemical isotopes in peat bogs.

氮肥改变了泥炭沼泽中化同的平衡。

14.This toxicity is related to what's called the kinetic isotope effect.

这种毒性与所谓的动力同效应有关。

15.A level of the hydrogen isotope called radioactive tritium will remain in the water.

一种被称为放射性氚的氢同会留在水中。

16.They were injecting rats with radioactive isotopes and one of the techs got bit.

他们给老鼠注射了放射性同 但其中的一名技术员被咬了。

17.I'm referring to the americium isotopes I was using to make a nuclear reactor.

我在说的是我当年想拿来制造核反应堆的镅同。

18.It's possible some of the more exotic isotopes of oxygen came from the other planet.

有可能这些稀有的同部分来自另一个星球。

19.The researchers demonstrated the corn plants' talent by exposing them to labeled isotopes of nitrogen.

人员让玉米接触带标记的氮同，以此来证明其才能。

20.Johnson's team analyzed trace elements and carbon and oxygen isotopes in the hardened cave drippings.

约翰逊的团队分析了硬化洞穴水滴中的微量元和碳氧同。