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| 21. | intergalactic nebula |
| 星系际星云 |
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| 22. | North American Nebula |
| 北美洲星云 |
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| 23. | primordial solar nebula |
| 太阳系星云 |
|
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| 24. | galactic nebula |
| 银河内星云 |
|
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| 25. | Great Looped Nebula |
| 大圈星云 |
|
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| 26. | cometary nebula |
| 彗状星云 |
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| 27. | Triangulum Nebula |
| 三角座星云 |
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| 28. | variable nebula |
| 变光星云 |
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| 29. | Crab nebula |
| 蟹状星云 |
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| 30. | Orion nebula |
| 猎户座大星云 |
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