Last Updated：2025/12/02
Sentence
技術者たちは、いくつかの人工衛星の安全な軌道投入を確実にするために、複数の第1宇宙速度を計算した。
Quizzes for review
Engineers calculated the first cosmic velocities for several satellites to ensure safe orbital insertion.
See correct answer
Engineers calculated the first cosmic velocities for several satellites to ensure safe orbital insertion.
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