perihelion

perihelion的英语例句

1. When perigee and perihelion coincide tidal range is at its greatest.

   当月球与地球到达它们的近地点和近日点的时间恰好重合时,就会引起最大的潮汐.

2. The anomalistic year is the time between successive transits of the Earth through the perihelion.

   近点年是地球连续两次通过近日点之间的时间.

3. How much does the direction of perihelion change each orbit?

   近日点方向使每个轨道改变了 多少 ?