perigee
名词
UK/ˈper.ɪ.dʒiː/
US/ˈper.ɪ.dʒiː/
定义 perigee 名词
- Countable(可数名词)Uncountable(不可数名词)physics(物理)
The point in the orbit of the moon or a satellite at which it is nearest to the Earth.
（月球或人造卫星）轨道上距离地球最近的点。
The satellite's signal reception is strongest when it is at perigee.
当卫星位于近地点时，其信号接收最强。
Scientists are tracking the satellite's orbit to accurately measure its perigee.
科学家正在追踪卫星的轨道，以准确测量其近地点。
The Moon's perigee occurs when it is closest to the Earth in its orbit.
月球的近地点出现在其轨道上离地球最近的位置。