 |
| |||
| 频率保护 | |||
| 频率保护装置 | |||
| frequency protection: 14 phrases in 7 subjects |
| Air defense | 1 |
| Business | 1 |
| Electric machinery | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 5 |
| Information technology | 1 |
| Technology | 4 |
|
| |||
| 频率保护 | |||
| 频率保护装置 | |||
| frequency protection: 14 phrases in 7 subjects |
| Air defense | 1 |
| Business | 1 |
| Electric machinery | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 5 |
| Information technology | 1 |
| Technology | 4 |