These cancers can be prevented if children are given pills containing the non-radioactive isotope of iodine soon after exposure.
这些癌症其实是可以避免的，只要在受到辐射之后，马上给儿童们服用不具有放射性的碘的同位素做成的药片。
2
This means that to build a battery that can last as long as the isotope inside, they must be built larger.
这意味着要建造一座同内置的同位素一样长寿的电池就须建得非常大。
3
Selectivity and excitation rate of laser isotope separation can be enhanced by using the coherent selective Doppler-free two-photon excitation with intermediate resonant level.