名词
中文翻译：天体重力点
同义词：
['astronomical point', 'celestial point']
例句：
-
1.The astronomers determined the positions of these points using a telescope.
天文学家们使用望远镜确定了这些点的方位。
-
2.The celestial bodies are at their most visible when they are close to the earth's orbit.
当这些天体靠近地球轨道时，它们看起来最为明显。
-
3. The astronauts used these points to calculate the distance between the planet and the sun.
宇航员们利用这些点来计算行星与太阳之间的距离。