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发表于 2025-3-30 10:25:17
Training Suborbital Astronauts,certification and training standards to commercial astronauts, we’d find ourselves with a very small pool of candidates because not everyone has the résumé of a government astronaut. And, finally, the stresses of suborbital flight are by several orders of magnitude smaller than those imposed by orbi
champaign
发表于 2025-3-30 16:24:27
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