orbital velocity

基本解释

If you want to escape from this, you will need a speed which is the square root of two times larger than that orbital velocity.
如果想要逃离这里，你将需要一个速度,是轨道速度2倍大的,平方根。
Astronauts aboard the ISS see 16 sunrises and sunsets per day due to their high orbital velocity (greater than 28,000 km per hour).
每天，宇航员在高速（每小时大于28000千米）运行的轨道上能看到16次日出和日落。
Whether you have a very light object or a very heavy satellite, they have the same velocity in orbit if they are at the same distance, and they have the same orbital period.
不论你有个很轻的,物体还是很重的卫星,如果它们距离相同且,在轨道运动时间,相同，则速度一样。

the velocity required by a spacecraft, satellite, etc, to enter and maintain a given orbit