A photon is explained as an exciton of the electromagnetic mode, and the photon has an internal motion.

把光子理解为一个电磁模的元激发，光子亦具有内部运动。

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His calculations regarding the internal motion of molecules did not agree with measurements of specific heats, for instance.

例如，他关于物质内部分子运动的计算与黑体辐射实验结果不相符。

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In this paper we suggest a two-sphere model in which we assume that there is internal motion between two spheres but they keep separation from each other for simplifying particle-chain in ERF.

为了具体分析这种关系，采用不分离但有相互运动的双球构成的系统去简化粒子链。

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Chopra explains that being in touch with the this kind of consciousness is what sports players, ballet dancers, and musicians experience when they enter a moment of utter connectedness with their art: the mind is clear, the world appears in slow motion, and all internal dialogue fades away.

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The United Parcel Service has for decades followed Taylor's time-and-motion theories to make its internal operations highly efficient, to the point of measuring the paces between a double-parked truck and a customer's doorstep.

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The quartz movement does not require battery changes, as a rotor in the watch moves with the motion of your wrist to charge the internal battery.

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