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Antiquarian map societies are prospering, and celestial maps are now viewed as a specialty of map collecting.
古地图社会正在蓬勃发展，天体图，现在作为一个专业的地图收集效果。
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The research of stars map bottom procession in celestial navigation has been done in this dissertation.
本文是对天文导航中星图图像进行底层处理的研究。
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