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band group; band system |
système de bandes: 43 phrases in 12 subjects |
Agriculture | 4 |
Aviation | 1 |
Communications | 17 |
Earth sciences | 1 |
Education | 1 |
Electronics | 9 |
Forestry | 1 |
Industry | 1 |
Information technology | 4 |
International Monetary Fund | 1 |
Metallurgy | 2 |
Natural sciences | 1 |