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| 对大小; 绝对星等天体光度的一种量度。假定把恒星放在距地球10秒差距的地方测得的恒星的亮度，用以区别于视星等 Apparent magnitude。它反映天体的真实发光本领 | |||
| 绝对大小; 绝对值 | |||
| 绝对星等 | |||
| 绝对量 | |||
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absolute magnitude : 18 phrases in 4 subjects |
| Aviation | 1 |
| Space | 6 |
| Technology | 10 |
| Telecommunications | 1 |
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