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声底值 | |||
本底背景噪声 | |||
声背景值 | |||
背景声 | |||
背景噪声 | |||
本底噪声 | |||
背景噪音 | |||
背景杂音; 暗噪声; 基底噪声; 环境噪声; 本底嗓声 | |||
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背景噪音 (来自非监测渠道的噪音。) |
background noise : 43 phrases in 11 subjects |
Air defense | 3 |
Automobiles | 2 |
Aviation | 3 |
Communications | 1 |
Electronics | 3 |
Geophysics | 1 |
Nautical | 1 |
Project management | 1 |
Remote sensing | 1 |
Space | 5 |
Technology | 22 |