| |||
directional launch; beaming | |||
beam transmission; directional transmission | |||
| |||
beam transmission | |||
| |||
beam transmission |
定向 发射 : 16 phrases in 9 subjects |
Air defense | 2 |
Automobiles | 1 |
Chemistry | 1 |
Earth sciences | 1 |
Electronics | 1 |
General | 1 |
Space | 4 |
Technology | 4 |
Thermal Energy | 1 |