récirculation : 67 phrases in 19 subjects |
Armored vehicles | 1 |
Automated equipment | 1 |
Automobiles | 1 |
Aviation | 3 |
Chemistry | 15 |
Construction | 6 |
Engines | 1 |
Environment | 1 |
Food industry | 1 |
Forestry | 1 |
General | 1 |
Hydraulic engineering | 1 |
Information technology | 3 |
Labor organization | 1 |
Medical appliances | 2 |
Metallurgy | 1 |
Natural resourses and wildlife conservation | 2 |
Technology | 17 |
Trucks/Lorries | 8 |