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| радиоуглерод | |||
| радиоактивный изотоп углерода | |||
| радиокарбон | |||
| радиоактивный углерод | |||
| radiocarbon: 24 phrases in 10 subjects |
| Agrochemistry | 1 |
| Energy industry | 1 |
| General | 1 |
| Geology | 3 |
| Geophysics | 1 |
| Hydrology | 1 |
| Makarov | 10 |
| Natural resourses and wildlife conservation | 3 |
| Physics | 1 |
| Technology | 2 |