 |
| |||
| 扫描射束; 扫描电子束; 扫描波束 | |||
| scan beam: 21 phrases in 8 subjects |
| Air defense | 7 |
| Electronics | 2 |
| Geophysics | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 6 |
|
| |||
| 扫描射束; 扫描电子束; 扫描波束 | |||
| scan beam: 21 phrases in 8 subjects |
| Air defense | 7 |
| Electronics | 2 |
| Geophysics | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 6 |