脉波电码调变 pcm ( pulse code modulation ): 脉冲编码调制pcm pulse code modulation: 脉冲编码调制; 脉码调制技术pcm(pulse code modulation): 脉冲代码调制pulse code modulation pcm: 博码调变; 脉冲编码调制; 脉码调制pulse code modulation(pcm): 脉码调制下载手机词典可随时随地查词查翻译