| 1. | They are permanent as a photon is not .
它们是永恒的，而光子则不然。
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| 2. | These energypackets are called photons .
这些具有能量的微粒叫光子。
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| 3. | The quantum of light is called a photon .
光的量子就称为光子。
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| 4. | These units of energy are photons or quanta .
这种能量单位称为光子或量子。
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| 5. | Photons come out in blobs .
光子是以一个个的滴状形式出现的。
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| 6. | To turn on the light creates photons by the swarm .
打开电灯就有大量光子产生。
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| 7. | The theoretical explanation invokes virtual photons .
这一理论解释需借助于虚光子。
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| 8. | A real or virtual photon may spontaneously annihilate .
一个实的或虚的光子可以自发地湮没。
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| 9. | Two photons are created in the decay of the neutral pion .
双光子是在中性兀介子衰变中产生的。
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| 10. | The two photons go off together as coherent radiation .
这两个光子一起发射出去，形成相干辐射。
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