[通信] 语声压缩 speech compression: 亚音速压缩; 言语压缩; 语言压缩compression of speech bandwidth: 语声频带压缩speech bandwidth compression: 语言频带压缩speech bandwidth compression system: 语音频带压缩制speech data compression: 语音数据压缩下载手机词典可随时随地查词查翻译