The coordinates of a moving particle are represented as functions of time .

运动质点的座标被表示为时间的函数。

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The distribution of gas velocity and its pressure, the temperature field of gas and solid in the moving particle bed are calculated at different conditions.

研究了不同情况下导管内填充多孔介质中的流速、气固温度和压力分布。

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I want to write down for you equations for a moving particle a moving object in three-dimensional space very complicated motion which I can hardly imagine what it's like.

我下面给大家，粒子的运动方程，即在三维空间中物体的运动，非常复杂的运动，很难想象它是如何的。

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If de Broglie is correct, we could then model the electron in its orbit not moving as a particle, but let's model it as a wave.

如果德布罗意是对的，那么我们可以在电子轨道中建立电子模型,不是像粒子一样运动，而是像波一样运动。

麻省理工公开课 - 固态化学导论课程节选

but you can sort of tell that the particle is moving slowly or rapidly by looking at the space in between these tick marks.

但你可以通过观察计时点之间的距离,来判断该物体运动的快慢

耶鲁公开课 - 基础物理课程节选

Suppose the particle is not moving in a circle, but does this.

假设这个质点不是做圆周运动,而是这样

耶鲁公开课 - 基础物理课程节选

However, one of those is when a particle is slow-moving and massive.

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