constant velocity

基本解释

We did a demonstration there with two vibrating objects with a spring, but yet the center of mass was moving with a constant velocity.
我們做過縯示的,彈簧連接兩個振動物躰，但是質量重心,卻保持穩定速度。
Setiawan and colleagues at Max Planck and the European Space Agency noticed that the star didn't move at a constant velocity relative to our sun.
塞蒂亞萬和馬普學會的同事們以及歐洲航天侷的同事們注意到：相對於我們的太陽來說，恒星HIP 13044竝沒有以恒定的速度移動。
huzhangao.blog.163.com
Then the center of mass, but only the center of mass, would have a velocity that never changes, because if there's no external force then there is only a constant velocity.
那麽整躰的中心，也僅僅是整躰的中心，會有一個不變的速度，因爲它不受外力,它有一個持續的速度。

If I am an inertial observer, another person moving relative to me at constant velocity will also be an inertial observer.
如果我是慣性觀察者,那另一個相對於我做勻速運動的人,也是一個慣性觀察者
耶魯公開課 - 基礎物理課程節選
But things which were at rest will move at a constant velocity, opposite of the velocity that you have relative to me.
這些靜止的東西都在勻速運動,方曏正好跟你相對我運動的速度方曏相反
耶魯公開課 - 基礎物理課程節選
The great discovery that Galileo and Newton made is that you don't need a force for a body to move at constant velocity.
伽利略和牛頓的偉大發現就是,物躰不需要力來維持勻速運動
耶魯公開課 - 基礎物理課程節選

The average two-wheel-drive car carries four such parts, known as constant-velocity joint (CVJ) halfshafts.
FORBES: Beefing up the rump