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 mean square value噪声均方值noisefrequency spectrum噪声(频)谱noise absorping circuit吸噪电路noise suppressor effect噪声抑制器效应Noise reducing of image图像去噪noise canceller circuit噪声消除电路noise cancel adjustment噪声消除调整noise suppression sheet电磁噪声抑制片noise impact assessment声环境影响评价noise removal algorithm滤波算法