不稳定原子在达到稳定状态前，需要释放出自身多余的能量，这一能量即辐射。
An unstable atom gives off its excess energy until it becomes stable. The energy emitted is radiation.
第三，用于稳定核电站的时间越长，所产生持续的伤害存在的时间也就越长，同样的，水性辐射可能影响到农民和渔民的营生，他们可是这个城市的经济命脉。
Three, the longer it takes to stabilise, the more lasting damage wind- and waterborne radiation may do to the livelihoods of the farmers and fishermen who are the economic lifeblood of the community.
原子通过辐射由不稳定状态转变为更加稳定状态的过程称为放射性衰变或放射性。
The process by which an atom changes from an unstable state to a more stable state by emitting radiation is called radioactive decay or radioactivity.
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