perihelion meaning in Chinese
n.
(pl. -helia ) 【天、宇】(行星或彗星运行轨道最接近太阳的)近日点 (opp. aphelion); 最高点，极点。
Examples
- 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。 - 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。 - A comet is at perihelion when it is closest ( = very close ) to the sun
彗星最接近太阳时，它就是在近日点。 - Advance of the perihelion
近日点前移 - Advance of perihelion
近日点前移