理学 国际空间数据处理大会 释 International Symposium on Spatial Data Handling; SDH 国际空间数据处理大会 国际地理联合会地理信息科学委员会发起的国际会议系列，是地理信息科学领域最早和最有代表性的国际会议之一。
网络与数据通信 协议体系与组成结构 释文 synchronous digital hierarchy, SDH 同步数字体系
- Poncelet transverse
- pond
- pond aquaculture
- pond aquaculture composite constructed wetland
- pond aquaculture environment
- pond aquaculture facilities
- pond aquaculture machinery
- pond bio-floating bed
- pond community
- pond culture of crustaceans
- pond culture of fish
- pond culture of sea cucumber
- pond ecological aquaculture
- pond ecosystem
- ponderability
- ponderable
- ponderal
- ponderance
- ponderator
- ponderomotive force
- pond feeder
- pond fish culture
- Pondicherry
- pond landscape
- pond loach