An autonomous optical navigation scheme for landing of spacecraft on a small celestial body based on navigation camera and laser range finder measurements was studied.
研究了空间飞行器向小天体着陆阶段基于导航相机和激光测距仪的自主光学导航方案。
Taoism stresses the human body is a small universe, the human body is a part of celestial bodies.
道家讲人体就是一个小宇宙，人体也是天体的一部份。
There are commonly the helical structures in the celestial body from many gigantic whirl nebulae to small meteoric stone and dust falling to the Earth.
天体中， 从众多的硕大的旋涡状星云， 到坠落于地球上的微小的陨砂、陨尘， 普遍存在着螺旋状的结构形态。
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