| |||
| 主动型噪声 | |||
|
active noise : 20 phrases in 8 subjects |
| Air defense | 1 |
| Automobiles | 4 |
| Aviation | 5 |
| Ecology | 1 |
| Electronics | 4 |
| General | 1 |
| Space | 2 |
| Technology | 2 |
| |||
| 主动型噪声 | |||
|
active noise : 20 phrases in 8 subjects |
| Air defense | 1 |
| Automobiles | 4 |
| Aviation | 5 |
| Ecology | 1 |
| Electronics | 4 |
| General | 1 |
| Space | 2 |
| Technology | 2 |