其工作原理是不同核素在衰变过程中，释放出的粒子或射线能量是不同的。
Its working principle is nuclides in the process of decay, the releases of particles or ray energy is different.
论述了泡沫的衰变机理，用搅拌法测定了不同表面活性剂的泡沫衰变过程。
This paper discusses the decaying mechanism of foams and the valuation method used to evaluating the decay of foams.
电荷不仅由衰变“前”到衰变“后”是守恒的，而且在衰变过程的每一个中间的阶段也都是守恒的。
The charge is conserved not only from "before" to " after " but also at every intermediate stage of the process.
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