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interstellar travel | |||
interplanetary and interstellar flight; interplanetary and interstellar navigation; astronautics; interplanetary & interstellar navigation | |||
astronavigation; interplanetary navigation | |||
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interstellar navigation | |||
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interstellar travel | |||
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interstellar travel |
星际 航 行 : 22 phrases in 5 subjects |
Aviation | 1 |
Aviation medicine | 1 |
Earth sciences | 1 |
General | 6 |
Space | 13 |