关于人造卫星绕地球运行的近似公式

The Approximate Formular about The Speed of The Artificial Satellite Moving at Some Spot

用全新的方法推证了人造卫星在某点运行速度的近似公式 ,并给出了人造地球卫星绕地球一周所需时间的简明公式 .

In the paper,the approximate formula about the speed of the sputnik moving at some spot was proved,and a compendious formula was given out on the time of the sputnik circling around the earth.