When Zhang Heng, the Chinese astronomer and geographer, wanted to draw a map of the heavens, he wasn't satisfied with a simple paper map.

当中国天文学家和地理学家张衡想画一幅天体地图时，他对简单的纸制地图并不满意。

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When Zhang Heng, the Chinese astronomer and geographer, wanted to draw a map of the heavens, he was not satisfied with a simple paper map.

当中国的天文学家、地理学家张衡想画一副天体图时，他并不满足于仅仅画一张简单的纸质地图。

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Now, thanks to a new collaboration with NASA, WorldWide Telescope has produced the most detailed spherical image of the heavens to date, along with a new 3-D, true color map of the surface of Mars.

现在，由于与美国航空航天局（NASA）的一项新合作，微软世界望远镜做出了迄今为止最详细的宇宙球面图，还有新的火星表面3D真彩地图。

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