This longevity poses Onkalo's custodians, and others in their position, with another unprecedented design issue: what sign should you put on the door?
这个长寿的建筑给Onkalo的管理人和在那的工作人员提出了一个前所未有的设计难题：我们该放一个什么标示在它的大门上呢？
The paper poses a measure method of relative position and attitude between spacecrafts based on monocular computer vision and feature points on the target.
提出了一种基于目标特征的航天器间相对位置和相对姿态单目视觉测量方法。
The paper poses a measure method of relative position and attitude between spacecrafts based on monocular computer vision and feature points on the target.
提出了一种基于目标特征的航天器间相对位置和相对姿态单目视觉测量方法。
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