 |
|
wire screen : 50 phrases in 26 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Cement | 1 |
| Drilling | 1 |
| Energy industry | 1 |
| General | 1 |
| Mechanic engineering | 2 |
| Metallurgy | 3 |
| Military | 2 |
| Mineral processing | 1 |
| Mining | 2 |
| Nautical | 3 |
| Oil / petroleum | 6 |
| Oil and gas technology | 4 |
| Oilfields | 1 |
| Packaging | 1 |
| Plastics | 1 |
| Polygraphy | 2 |
| Production | 1 |
| Security systems | 1 |
| Silicate industry | 3 |
| Space | 1 |
| Technology | 7 |
| Thermal engineering | 1 |
| Welding | 1 |