牛顿望远镜和反射折射望远镜都有一个次级反射镜(或称斜反射镜)，它们阻挡了一部分主反射镜的发射光。
Newtonian and catadioptric telescopes have secondary (or diagonal) mirrors that obstruct a small percentage of light from the primary mirror.
巨大的反射望远镜的反射镜以光学聚集来自天体的光，转往两部相机和两部摄谱仪。
The reflector telescope's mirror optics gather light from celestial objects and direct it to an array of cameras and spectrographs.
巨大的反射望远镜的反射镜以光学聚集来自天体的光，转往两部相机和两部摄谱仪。
The reflector telescope's mirror optics gather light from celestial objects and direct it to an array of cameras and spectrographs.
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