而较高气压时，束电子除受自身电磁场作用及库仑碰撞散射外，等离子体不稳定性使束流传输效率明显降低。
At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.
你可以得到一个弹性散射的碰撞，在那，原子就会反射，铀235原子，还会继续，那也可能会减慢一点。
You can have an elastic scattering collision where the neutron just essentially bounces off the uranium 235 atom and just continues on and it's possibly slowed down ever so slightly.
而上述博提施和希克苏伯鲁两次撞击是如此可疑地接近，暗示了这样一种假设——太阳系发生过几次巨大的碰撞，其中一些散射的宇宙岩石飞向了我们的星球。
But they're still suspiciously close together, suggesting that perhaps some great collision in the solar system sent a scatter-shot of space rocks headed our way.
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