当把光传入油层后，就被约束在那里，光线在金属和空气的边界之间不断反弹，于是产生了喇叭状的辉光(见图片)。
Light sent into the oil layer was confined there, bouncing between the metal and air boundaries. The beam spread out ever more quickly, generating a trumpet-shaped glow (see image).
根据盖利森的意见，光可以通过不同的介质运行，如在通过冷冻的纳气时，光的速度实质上变慢了。 然而这是因为光线在运行介质里的原子之间时，会反复地反弹。
Light traveling through different mediums, such as chilled sodium gas, does slow substantially, but this is because the light is being bounced between the atoms within the medium.
别忘了雪是一个反射性的表面，它将反弹非常多的光线。
Do not forget that snow is a reflective surface, it will bounce light off pretty much everywhere.
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