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The refractor is light weight, portable and can be used for either visual or CCD imaging.
该折射的是重量轻, 携带,可用于无论视觉或ccd成像.
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A three-inch refractor will give an excellent view as well as showing Titan.
一架三英寸的折射望远镜就能看到极好的景象,还可以看出土卫六.
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