网络与数据通信 有线网络 释文 pulse code modulation, PCM 脉冲编码调制 网络与数据通信 有线网络 释文 pulse code modulation, PCM 脉冲编码调制
- Global Marine Ecosystem Dynamics Programme
- Global Maritime Distress and Safety System
- Global Maritime Education and Training Association
- Global Marketing
- global mass matrix
- global maximum
- global medium-range numerical prediction model
- global memory
- Global Memory Net
- GlobalMET
- global meteoric water line
- global method
- global microelement cycle
- Global Microlensing Alert Network
- global minimum
- global missile defense system
- global mode
- global moduli theory
- global monsoon
- global monsoon systems
- global navigation
- Global Navigation Satellite System
- global navigation satellite system
- global navigation satellite system buoy
- global navigation satellite system for upper-air and wind sounding