| |||
| 噪声源 | |||
|
source of noise : 7 phrases in 4 subjects |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Project management | 1 |
| Technology | 4 |
| |||
| 噪声源 | |||
|
source of noise : 7 phrases in 4 subjects |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Project management | 1 |
| Technology | 4 |