并对表面声道中起伏率随距离的变化作了数值计算。

The change of coefficient of variation with range in a surface sound channel was calculated numerically.

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分析了高度及分离距离的变化对流场结构及气动力特性的影响。

The impact of altitudes and detachment distance on the structure of flow field and the aerodynamic properties is examined.

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与简单形状目标相比，复杂目标的回声强度随频率和距离的变化更为复杂。

By comparison with simple shape targets, the echo strength of the complex targets versus frequency and range is more complex.

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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

So, we can use Coulomb's force law to think and it does that, it tells us the force is a function of that distance. But what it does not tell us, which if we're trying to describe an atom we really want to know, is what happens to the distance as time passes?

来考虑这两个粒子之间的,它告诉我们力随距离的函数关系,但它不能告诉我们，而我们如果要描述,原子又非常想知道的是,距离随时间的变化时怎样的？

麻省理工公开课 - 化学原理课程节选