Her orbital speed must be a few hundred meters per second.
其轨道速度一定是在每秒几百米。
Kepler's second law means that a planet's orbital speed changes with its distance from the sun.
开普勒第二定律指行星的轨道速度与其和太阳的距离。
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。
The 15 minute sub-orbital flight achieved an altitude of 116 miles and a maximum speed of 5, 134 miles per hour.
这次15分钟的亚轨道飞行达到了海拔116英里的高度，最大速度为每小时5134英里。
The 15 minute sub-orbital flight achieved an altitude of 116 miles and a maximum speed of 5, 134 miles per hour.
这次15分钟的亚轨道飞行达到了海拔116英里的高度，最大速度为每小时5134英里。
应用推荐