noisemete噪音计noisen.噪声；喧闹声；响声vt.谣传vi.大声说话；发出噪音noise behind the signal调制噪声noise exposure forecast曝噪预报noise amplifier circuit噪声放大电路noise-factor nomogram噪声指数列线图noise suppression parts噪声抑制部分noise transfer function噪声转移函数noise measuring channel噪声测试信道noise pollution control噪音控制noise power measurement干扰功率测定noise control acoustics噪声控制学