 |
| |||
| 恒定带宽 | |||
|
constant bandwidth : 9 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 1 |
| Electronics | 1 |
| Geophysics | 2 |
| Hydroelectric power stations | 1 |
| Space | 1 |
|
| |||
| 恒定带宽 | |||
|
constant bandwidth : 9 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 1 |
| Electronics | 1 |
| Geophysics | 2 |
| Hydroelectric power stations | 1 |
| Space | 1 |