| |||
abatement of noise | |||
noise elimination | |||
noise abatement | |||
abatement noise | |||
| |||
silencing of noise |
消 除 噪声 : 38 phrases in 10 subjects |
Air defense | 1 |
Automobiles | 3 |
Aviation | 6 |
Ecology | 1 |
Electronics | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
Geophysics | 3 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Technology | 16 |