This extension of the photoelectric effect, in which one photon knocks one electron off the edge of an atom, could make physicists reconsider when light is a wave and when it's a particle.
在这种光电效应的延伸中，一个光子从原子的边缘打出一个电子，这可能要使物理学家们重新考虑光在什么情况下是波，什么情况下是粒子。
If, however, the pair appears on the edge of an event horizon, either particle or hole may wander across the horizon, never to return.
然而，如果两者出现在视界的边缘，粒子或者黑洞都可能穿过视界再也不会来。
The results of the analysis show that the content of S element is high at a particle edge location and low in the middle.
结果表明，S元素含量呈在颗粒边缘位置高中间低的情形。
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