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噪音频谱 | |||
噪声谱 | |||
噪声频谱 | |||
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噪声频谱 (出现在同一来源发出的噪声的频率范围。) |
noise spectrum : 26 phrases in 13 subjects |
Acoustics | 1 |
Air defense | 2 |
Automobiles | 2 |
Communications | 1 |
Construction | 1 |
Ecology | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Geophysics | 1 |
Space | 2 |
Technology | 9 |
Telecommunications | 3 |
Wind Energy | 1 |