 |
| |||
| 电路畅通 | |||
| circuit clear: 9 phrases in 6 subjects |
| Construction | 1 |
| Hydroelectric power stations | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 3 |
| Telecommunications | 2 |
|
| |||
| 电路畅通 | |||
| circuit clear: 9 phrases in 6 subjects |
| Construction | 1 |
| Hydroelectric power stations | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 3 |
| Telecommunications | 2 |