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| astronomical time | |||
| astronomic time (期); astronomical time (期); sidereal time | |||
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天文 时 : 28 phrases in 9 subjects |
| Astronomy | 1 |
| Aviation | 2 |
| Business | 2 |
| Electronics | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Space | 11 |
| Technology | 7 |
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