The rapid motion of the electros causes the sluggish nuclei to "see" the electron as a charge cloud rather than as a discrete particle.

电子的快速运动使得缓动的核把电子“看成”象电核云，而不是象分立的粒子。

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Coupled with fluid equations for the electron and ion motion, the microwave discharge courses are calculated.

耦合电子、离子运动的流体方程，对微波等离子体的初始形成过程进行了数值模拟计算。

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Relativistic motion of the electron produces fine structure among the energy levels.

电子的相对论性运动在能级中产生精细结构。

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What he did was took de Broglie motion of the electron as a wave and developed a wave equation for such matter waves.

他所做的就是,用电子的德布罗意运动,作为波并且对于那种物质波,给出波动方程。

麻省理工公开课 - 固态化学导论课程节选

But luckily for us, there's a classical equation of motion that will, in fact, describe how the electron and nucleus change position or change their radius as a function of time.

但幸运的是，有一个,经典方程描述了电子和核子,位置或者它们直接的距离是,如何随时间变化的。

麻省理工公开课 - 化学原理课程节选

Earlier this year a team at Lund University in Sweden used a laser with pulses measured in attoseconds (billion billionths of a second) to record an electron in motion.

ECONOMIST: Ultra-fast lasers