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| 秒的符号"：3° 5' 30"读作 three degrees five minutes and thirty seconds 3度5分30秒 | |||
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| 秒号" | |||
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second -mark : 5 a las frases, 2 temas |
| Geodesia | 1 |
| Tecnología | 4 |
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| 秒的符号"：3° 5' 30"读作 three degrees five minutes and thirty seconds 3度5分30秒 | |||
| |||
| 秒号" | |||
|
second -mark : 5 a las frases, 2 temas |
| Geodesia | 1 |
| Tecnología | 4 |