So, in principle, you can determine for each one of those stars the velocity in orbit, the radius of their orbit and, of course, the period of the binary system.

所以从原则上来说，你们可以决定任何,恒星在轨道中的速度，轨道的半径以及，当然，二元体系的周期。

youdao

That means when I drop an apple — - and I'm going to drop another one today — that the velocity increases with time.

这也就是说，当我让苹果落下时……，…今天又得摔一个苹果-，它的速度会渐渐增加。

youdao

This is the velocity that is predicted by the one story.

这就是一个故事的预期速度。

youdao

One is inertial mass, which is how much you hate your velocity to change, how hard you resist acceleration.

一个是惯性质量,它反映了物体速度改变的难易程度,即保持加速度的难易程度

耶鲁公开课 - 基础物理课程节选

The first one is velocity, the second one is acceleration.

一阶导数叫速度,二阶导数叫加速度

耶鲁公开课 - 基础物理课程节选

Once you can take one derivative, you can take any number of derivatives and the derivative of the velocity is called the acceleration, and we write it as the second derivative of position.

只要你能求一阶导数,你就能求任意阶的导数,速度的导数被称为"加速度",我们把它写成位移的二阶导数

耶鲁公开课 - 基础物理课程节选

So one can inflate the supply of money all one wants, in an economy of declining velocity, it will produce only minimal inflation, if one is lucky.

FORBES: Keynesianism in 1954

The captain accompanied Maj Gen Ford in the area on the day of the march and said he heard between 15 to 20 high velocity shots and one burst of automatic fire as well as "two small explosions" which could have been nail or petrol bombs.

BBC: Heath unaware of risk to civilians

The "silos" are actually smokestacks for the two 6, 130-horsepower natural gas-powered compressors that will take gas from a 30-inch pipeline and send it at a higher velocity into a 24-inch one.

WSJ: NY town of 9/11 workers wages gas pipeline fight