碳有好几种同位素。
但是同位素的用处更多。
Certain isotopes are not found in nature.
有些同位素在自然界中并不存在。
Isotopes also prove helpful in other conditions.
事实证明，在其他情况下，同位素也很有用处。
So, you know, I could separate radioactive isotopes.
那我就可以分离放射性同位素了。
This time, it is carbon isotopes that give the game away.
这一次是碳同位素泄露了秘密。
One example is the use of lasers to separate isotopes.
用激光分离同位素就是一个例子。
Different forms of a single element are called isotopes.
单个元素的不同形式称为同位素。
The separation of tungsten isotopes by gas centrifuge is studied.
本工作对离心法分离钨的同位素进行了研究。
In most cases, only stable isotopes of elements are found in nature.
在大多数情形下，自然界中只能找到稳定同位素。
Many elements in nature are found to be mixtures of different isotopes.
人们发现，自然界里许多元素，都是各种不同的同位素的混合物。
Isotopes have the same chemical identity but different nuclear properties.
同位素有相同的化学特性，但是原子属性不同。
If they are found on the same place, it is iso-topos. These are called isotopes.
如果是在同一个位置，按照国际惯例，它们被叫做同位素。
The gas centrifuge technology is studied for the separation of Xe isotopes.
采用离心法进行了氙同位素离心分离。
A large number of radioactive isotopes among the heavy elements are of three series.
重元素中的大量放射性同位素分别属于三个系列。
The large number of radioactive isotopes among the heavy elements fit into three series .
重元素中的大量放射性同位素分属于三个系列。
They are among the few minerals that show mass independent fractionation of oxygen isotopes.
硫酸盐不仅是常见矿物，还是自然界少数几个具有氧同位素非质量分馏效应的矿物之一。
They are among the few minerals that show mass independent fractionation of oxygen isotopes.
硫酸盐不仅是常见矿物，还是自然界少数几个具有氧同位素非质量分馏效应的矿物之一。
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