第一宇宙速度

第一宇宙速度（V1）航天器沿地球表面作圆周运动时必须具备的速度，也叫环绕速度。

The first cosmic speed ( V1 ) spacecraft as the earth 's surface along the circular motion must have the speed , also known as speed around .

第一宇宙速度两个别称：航天器最小发射速度、航天器最大运行速度。

The first two speed of the universe another name : the smallest space launch speed , maximum speed of the spacecraft .

在一些问题中说，当某航天器以第一宇宙速度运行，则说明该航天器是沿着地球表面运行的。

In a number of issues that when a spacecraft to the speed of the universe in the first run , it shows that the spacecraft is operating along the Earth 's surface .

第一和第二宇宙速度的诠释

Annotations on the First Cosmic Velocity and the Second Cosmic Velocity

讨论了第一和第二宇宙速度的含义，澄清了与这两个速度有关的一些模糊认识。

The implications of the first cosmic velocity and the second cosmic velocity are discussed . the blurred knows relative to the two velocities are cleared .