护身符
发表于 2025-3-26 22:56:16
Varizen · Ulcus cruris und ThromboseThe Soviet Union (Russia) conducted six different unmanned lunar exploration programs between 1958 and 1973. Each of those programs had successful missions along with several failures. Those unmanned explorations of the moon have been described in the previous two chapters of this book.
从容
发表于 2025-3-27 03:44:02
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享乐主义者
发表于 2025-3-27 05:39:30
,The Nature of the Moon,The moon is the most imposing feature of the night sky. Much is known about the moon today, thanks in part to exploration by the spacecraft discussed in this book. A few interesting facts about the moon are presented below to set the stage for the discussion of lunar exploration spacecraft that follows.
Goblet-Cells
发表于 2025-3-27 12:03:07
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Anthropoid
发表于 2025-3-27 15:27:48
The Surveyor Lunar Landing Mission,The Surveyor spacecraft was a pioneering lunar lander and a pathfinder for the manned Apollo lunar landers that followed. A photograph of an engineering test model of the spacecraft is shown below. The model rests on the beach near the Hughes Aircraft Factory in Los Angeles. Surveyor was developed and built by Hughes (Fig. 4.1).
伸展
发表于 2025-3-27 21:38:18
The Apollo Command Module,The Command Module and the Service Module remained joined until just before return to earth. The overall assembly was referred to as the Command Service Module (CSM).
策略
发表于 2025-3-27 22:56:14
Russian Manned Circumlunar Flight,The Soviet Union (Russia) conducted six different unmanned lunar exploration programs between 1958 and 1973. Each of those programs had successful missions along with several failures. Those unmanned explorations of the moon have been described in the previous two chapters of this book.
鄙视
发表于 2025-3-28 02:53:36
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孤僻
发表于 2025-3-28 08:40:27
Tom LundA technical history of lunar exploration during the Cold War.Reflects firsthand knowledge of US space operations and spacecraft design.Abundant details on all major spacecraft subsystems, from rocket
ferment
发表于 2025-3-28 12:39:32
Springer Praxis Bookshttp://image.papertrans.cn/e/image/300724.jpg