 |
| |||
| 多相电压 | |||
|
polyphase voltage : 16 phrases in 4 subjects |
| Electric machinery | 6 |
| Electronics | 7 |
| Information technology | 1 |
| Scientific | 2 |
|
| |||
| 多相电压 | |||
|
polyphase voltage : 16 phrases in 4 subjects |
| Electric machinery | 6 |
| Electronics | 7 |
| Information technology | 1 |
| Scientific | 2 |