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методика морских работ с тремя косами и тремя источниками |
triple-triple system: 20 phrases in 14 subjects |
Aerohydrodynamics | 1 |
Astronomy | 1 |
Aviation | 1 |
Electronics | 1 |
Energy industry | 1 |
Gyroscopes | 1 |
Librarianship | 1 |
Mass media | 2 |
Mathematics | 4 |
Mining | 2 |
Quality control and standards | 1 |
Refrigeration | 1 |
Technology | 2 |
Television | 1 |