| |||
| 收缩环整流器 | |||
| 套环换向器 | |||
|
shrink-ring commutator : 7 phrases in 5 subjects |
| Electric machinery | 1 |
| Electronics | 3 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Technology | 1 |
| |||
| 收缩环整流器 | |||
| 套环换向器 | |||
|
shrink-ring commutator : 7 phrases in 5 subjects |
| Electric machinery | 1 |
| Electronics | 3 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Technology | 1 |