理学 多媒体编码 释 pulse code modulation 脉冲编码调制 实现模拟信号数字化传输的编解码系统，是现代语音通信中数字化的重要编码方式。
网络与数据通信 有线网络 释文 pulse code modulation, PCM 脉冲编码调制
- left transversal
- left triple of vectors
- left truncated and right censored data
- left-truncated and right-censored data
- left truncated data
- left-truncated data
- left-truncated distribution
- left truncation and right censoring
- left-truncation and right-censoring
- left turn
- left twisted helix
- left uniformity
- left unique relation
- left unit
- left-unitary kernel
- left unit element
- left unit subsemigroup
- left unity
- left universal solution
- left vector space
- left ventricle
- left ventricular ejection fraction
- leftward acceleration
- leftward extraction rule
- left weak dimension