 |
| |||
| centre tap | |||
| 中接 头: 27 phrases in 8 subjects |
| Aviation | 3 |
| Communications | 1 |
| Drilling | 3 |
| Electric machinery | 1 |
| Electronics | 3 |
| Space | 1 |
| Technology | 14 |
| Water resources | 1 |
|
| |||
| centre tap | |||
| 中接 头: 27 phrases in 8 subjects |
| Aviation | 3 |
| Communications | 1 |
| Drilling | 3 |
| Electric machinery | 1 |
| Electronics | 3 |
| Space | 1 |
| Technology | 14 |
| Water resources | 1 |