Annotations on the First Cosmic Velocity and the Second Cosmic Velocity
第一和第二宇宙速度的诠释
The implications of the first cosmic velocity and the second cosmic velocity are discussed . the blurred knows relative to the two velocities are cleared .
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。