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| 船位推算; 航迹推算 | |||
| 计算航迹; 推算航迹 | |||
| счисление пути: 33 phrases in 5 subjects |
| Aviation | 6 |
| General | 5 |
| Military | 1 |
| Nautical | 2 |
| Technology | 19 |
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