网络与数据通信 有线网络 释文 differential pulse code modulation, DPCM 差分脉冲编码调制 网络与数据通信 有线网络 释文 differential pulse code modulation, DPCM 差分脉冲编码调制
- hydrogeology calculation
- Hydrogeology & engineering geology
- hydrogeology monitoring
- hydrogeology remote sensing
- hydrogeololgical condition of ore district
- hydrogeophysical prospecting
- hydro-geothermal resources exploration
- hydroglider
- hydrogoethite
- hydrographical regionalization
- hydrographic control point
- hydrographic database
- hydrographic maps
- hydrographic net representation
- hydrographic remote sensing
- hydrographic survey
- hydrographic survey and chart drawing
- hydrographic survey equipment
- hydrographic survey in ancient China
- hydrographic surveying and charting equipment
- hydrographic survey ship
- hydrography
- hydrography and cartography
- hydrohematite
- hydroinformatics