The cells emitted light once every 24 hours over a sustained period of time.

在一段持续的时间内，这些细胞每隔24个小时就发光一次。

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Thus, back emitted light is reflected by the dichroic filter 106 towards wavelength converting element 110.

因此，反向发射的光被二向色滤光片106朝向波长转换元件110反射。

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The re-emitted light interacts with fluorescent pigments found on the butterflies’ wings to produce the vibrant green-blue color.

那些被重新发射的光线与蝴蝶翅膀上的荧光色素相互作用，就产生了明亮的蓝绿色。 相隔长距离的蝴蝶用这种明亮的颜色进行相互沟通。

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So that means we're going to need to figure out what is the energy per photon that's emitted by that UV light.

所以那意味着我们将需要,计算出从紫外光源发射出的,每个光子的能量。

麻省理工公开课 - 化学原理课程节选

And what we predict as an energy difference between two levels, we know should correspond to the energy of light that's either emitted, if we're giving off a photon, or that's absorbed if we're going to take on a photon and jump from a lower to a higher energy level.

我们预测，两个能级之间的能量差，我们知道，它要么和发出的光有关,如果它发出光子的话，要么它吸收光子,从低能级跃迁到，更高能级上去。

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