数值计算中考虑了两个上能级的自发辐射速率， 给出了脉冲能量的空间演化及电离粒子在空间的分布。

The spontaneous relaxation of upper levels is considered in numerical solutions. The calculation results show the evolution of pulse energy and the distribution of ionization particle.

youdao

正如宇宙大爆炸一样，我们在一个小空间里面有巨大的能量。

Just like the Big Bang, we have huge energy in a small space.

youdao

如果把巨大的质量或能量压缩到足够小的空间，那么扭曲就会非常严重，以至没有任何东西，包括光在内，能够逃脱它的引力。

If a large enough mass or energy is crammed into a small enough space that warping becomes so severe that nothing not even light can escape.

youdao

I mean, if the energy is lower to occupy a smaller volume, then if I have this room and a bunch of molecules of oxygen, and nitrogen and what have you in the air, and there are weak attractions between them, why don't they all just sort of glum together and find whatever volume they like.

我的意思是，如果占据小的体积会使能量降低，如果我有这样一个空间,和一些氧气，氮气和其他空气中有的气体，并且分子之间还有微弱的相互作用，为什么他们不黏在一起,然后占据他们所想要占据的体积。

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