信息安全 密码理论与技术 释文 master key 主密钥
- open grid services architecture, OGSA
- open growth system
- open half-line
- open half-plane
- open half-space
- open hearth furnace
- open hearth steelmaking
- open hemisphere
- open herding
- openhole cavity completion technology
- open hole completion
- open hole test
- open-hole well logging
- open immersion
- open inflation
- Open Information Extraction
- open information source
- opening
- opening and cleaning machine
- opening and closing ceremony of the sports meeting
- opening and scutching
- opening area along the border
- opening-door schooling
- opening of a play
- opening of a wedge