 |
| earth -fault: 120 phrases in 20 subjects |
| Automated equipment | 5 |
| British usage, not spelling | 3 |
| Caspian | 3 |
| Construction | 1 |
| Electric machinery | 5 |
| Electrical engineering | 52 |
| Electronics | 8 |
| Electrothermy | 1 |
| Energy industry | 2 |
| Energy system | 2 |
| Makarov | 1 |
| Occupational health & safety | 2 |
| Oil / petroleum | 3 |
| Oil and gas | 1 |
| Power system protection | 1 |
| Rail transport | 3 |
| Sakhalin | 4 |
| Security systems | 13 |
| Technology | 9 |
| Transport | 1 |