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hauteur du niveau |
высота уровня : 40 phrases in 13 subjects |
Agriculture | 1 |
Aviation | 6 |
Construction | 1 |
Forestry | 2 |
General | 5 |
Geography | 1 |
Geology | 5 |
Hydraulic engineering | 5 |
Meteorology | 1 |
Mining | 1 |
Oil and gas technology | 1 |
Surveying | 4 |
Technology | 7 |