 |
| |||
| beam conductance | |||
| 电子束电导: 26 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Earth sciences | 1 |
| Electronics | 10 |
| General | 4 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 3 |
| Water resources | 1 |
|
| |||
| beam conductance | |||
| 电子束电导: 26 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Earth sciences | 1 |
| Electronics | 10 |
| General | 4 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 3 |
| Water resources | 1 |