从一端到另一端，银河系布满星星的圆盘横跨12万光年，可以用肉眼和光学望远镜观察到。
From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120,000 light-years.
它是一个布满星星的圆盘，从一端到另一端跨越了120,000光年。你可以用肉眼，也可以通过光学望远镜观察银河系。
From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120, 000 light-years.
在它的一端有一个直径为八毫米的圆盘。这个圆盘可以固定全息胶片，并呈一定角度的倾斜。
At one end it has a disc 8 millimetres wide, which holds the holographic film, tilted at an Angle.
应用推荐