引导
发表于 2025-3-26 23:52:32
8楼
Allure
发表于 2025-3-27 03:47:56
9楼
按等级
发表于 2025-3-27 08:20:40
9楼
Influx
发表于 2025-3-27 10:41:50
9楼
Euthyroid
发表于 2025-3-27 13:59:44
9楼
esoteric
发表于 2025-3-27 18:00:32
10楼
Geyser
发表于 2025-3-28 00:25:31
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Deceit
发表于 2025-3-28 02:08:47
Human space flight and planetary exploration, on to Mars, then soft-landing systems will be needed. Fully thrust-controlled soft-landings have not been done since the Apollo era, and this technology needs to be re-invented to enable human planetary exploration. At the same time, soft-landing technology is also relevant to robotic and sample return missions.
专横
发表于 2025-3-28 07:02:19
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