回波判别力echo: n. (pl. echoes) 1.回声,反响;共鸣,反 ...perceptibility: 感觉力;理解力; 感受性; 能认知; 知觉能力area of perceptibility: 有感区contrast perceptibility: 衬比感受性函数limit of perceptibility: 觉察限度下载手机词典可随时随地查词查翻译