As navigator, Lovell took with him a sextant to take star readings - in case the computers failed and they had to find their own way home.
I also put "-" between things that look like multiple words, but would be written as one word today.，更多细节参见91视频
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Мощный удар Израиля по Ирану попал на видео09:41。业内人士推荐WPS官方版本下载作为进阶阅读