| |||
| 白色参考电平 | |||
|
white reference level : 6 phrases in 4 subjects |
| Air defense | 2 |
| Information technology | 1 |
| Technology | 2 |
| Telecommunications | 1 |
| |||
| 白色参考电平 | |||
|
white reference level : 6 phrases in 4 subjects |
| Air defense | 2 |
| Information technology | 1 |
| Technology | 2 |
| Telecommunications | 1 |