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| уровень поверхности земли | |||
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地面水准 : 27 phrases in 8 subjects |
| Cartography | 2 |
| Electronics | 1 |
| General | 5 |
| Geology | 5 |
| Geophysics | 2 |
| Nautical | 1 |
| Sakhalin | 1 |
| Technology | 10 |
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