封 头: 199 phrases in 16 subjects |
Automobiles | 1 |
Aviation | 5 |
Cables and cable production | 1 |
Construction | 2 |
Drilling | 3 |
Electricity | 1 |
Electronics | 61 |
Food industry | 1 |
General | 65 |
International Monetary Fund | 1 |
Military | 1 |
Nuclear and fusion power | 2 |
Oil / petroleum | 2 |
Oil processing plants | 2 |
Technology | 50 |
Thermal engineering | 1 |