He was too poor to buy an astronomical telescope.
他太穷了，买不起天文望远镜。
It is then acceptable to be used as an astronomical telescope.
这样的望远镜才适合做天文望远镜。
The second was the first use of an astronomical telescope by Galileo Galilei.
另一个重大发现则是伽利略•加利雷首次使用天文望远镜。
The mirror of an astronomical telescope forms at its focal point an image of a star on the axis of the mirror.
天文望远镜把在镜轴上的星体成象在焦点上。
To see the surface of mars, you need an astronomical telescope. it appears as a bright orange - red spot when seen with naked eye.
要欣赏火星的表面，需要天文望远镜的帮助，以肉眼观看，火星将会是一明亮的橙红色光点。
As often seen through an astronomical telescope eyepiece, the planet's orientation is inverted, with Mars' north polar cap at the bottom.
由于往往是通过天文望远镜的目镜拍摄，火星的方向是颠倒的，行星的北极冠在下面。
This paper is the fourth in a series publishing the results of an objective prism survey for emission-line galaxies with the 60 cm Schmidt Telescope of the Beijing Astronomical Observatory.
本文发表的是用北京天文台60厘米施密特望远镜进行发射线星系物端棱镜巡天结果的第四篇文章。
This paper is the fourth in a series publishing the results of an objective prism survey for emission-line galaxies with the 60 cm Schmidt Telescope of the Beijing Astronomical Observatory.
本文发表的是用北京天文台60厘米施密特望远镜进行发射线星系物端棱镜巡天结果的第四篇文章。
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