 |
| wire socket: 21 phrases in 15 subjects |
| Armored vehicles | 1 |
| Astronautics | 1 |
| Automobiles | 2 |
| Construction | 1 |
| Drilling | 2 |
| Electricity | 1 |
| General | 1 |
| Information technology | 2 |
| Microelectronics | 1 |
| Mining | 3 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Shipbuilding | 2 |
| Technology | 1 |
| Transport | 1 |