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- 氘氢的一种同位素,在其原子核内有一个质子和一个中子,其原子重量为2。014
An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.
- 发射出放射性粒子的同位素;发出热量的炉子
Isotopes that emit radioactive particles; a stove emitting heat.
- 射气几种氡的同位素的放射性气体,是放射性物质衰变的产物
Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
- 放射性碳碳的一种放射性同位素,尤指碳14
A radioactive isotope of carbon, especially carbon14.
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