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.
Sizes: 14- and 16-inch models
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This includes expertise vital to keeping the oil pumps working: with the skilled engineers formerly on the PDVSA payroll now plying their trade elsewhere, the system limps on with a skeleton staff.
10:56, 5 марта 2026Наука и техника
据水利部，黄河内蒙古河段将于近期全线开河，水利部黄河水利委员会今天（3月5日）针对内蒙古启动洪水防御Ⅳ级应急响应，确保黄河防凌安全。