 |
|
step-down substation : 25 phrases in 7 subjects |
| Architecture | 1 |
| Construction | 1 |
| Electric traction | 7 |
| Energy industry | 13 |
| Energy system | 1 |
| Production | 1 |
| Roll stock | 1 |
|
|
step-down substation : 25 phrases in 7 subjects |
| Architecture | 1 |
| Construction | 1 |
| Electric traction | 7 |
| Energy industry | 13 |
| Energy system | 1 |
| Production | 1 |
| Roll stock | 1 |