数据库 数据库管理系统及其实现技术 释文 data manipulation language, DML 数据操纵语言
- underwater moving target observing
- underwater nuclear explosion
- underwater observating network
- underwater observation networking
- underwater operation equipment
- underwater optical communication
- underwater optical correction
- underwater optical fiber communication
- underwater optical image recognition
- underwater optical imaging
- underwater optical sensing technology
- underwater optical technique
- underwater optical technology
- underwater orienteering
- underwater photogrammetry
- underwater photographic camera
- underwater photography
- underwater piezoelectric sensing technology
- underwater pipeline
- underwater positioning
- underwater pressurization system
- underwater processing system
- underwater propulsion
- underwater raman spectroscopy
- underwater reef blasting