 |
| |||
| 电路闭合 | |||
| 电路接通 | |||
| circuit closing: 27 phrases in 7 subjects |
| Aviation | 1 |
| Compressors | 2 |
| Electrical engineering | 1 |
| Electronics | 10 |
| Hydroelectric power stations | 2 |
| Rail transport | 4 |
| Technology | 7 |
|
| |||
| 电路闭合 | |||
| 电路接通 | |||
| circuit closing: 27 phrases in 7 subjects |
| Aviation | 1 |
| Compressors | 2 |
| Electrical engineering | 1 |
| Electronics | 10 |
| Hydroelectric power stations | 2 |
| Rail transport | 4 |
| Technology | 7 |