| |||
背景噪声; 声底数值 | |||
噪声背景 | |||
噪声本底; 本底噪声 |
noise background : 52 phrases in 17 subjects |
Air defense | 3 |
Architecture | 1 |
Automobiles | 3 |
Aviation | 1 |
Communications | 1 |
Electronics | 3 |
Engineering geology | 1 |
Environment | 1 |
Fishery fishing industry | 1 |
Geophysics | 1 |
Information technology | 1 |
Metallurgy | 1 |
Nautical | 1 |
Project management | 2 |
Remote sensing | 1 |
Space | 5 |
Technology | 25 |