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| 蒙气差; 濛气差 | |||
| 天文折射 | |||
| 大气折射 | |||
| 大气差; 天文折光差; 天文蒙气差 | |||
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| 大气折射; 大气差; 天文折光差; 天文蒙气差 | |||
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astronomical refraction : 2 phrases in 2 subjects |
| Earth sciences | 1 |
| Space | 1 |
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