信息安全 信息系统安全防护技术 释文 password aging 口令生命期
- SI词头
- si面
- SJF
- SJ model
- SJ模型
- SK
- SKA
- Skagerrak
- Skalnate Pleso Atlas of the Heavens
- Skamander
- Skanda
- Skanderbeg
- Skansen
- S. Karlin
- S. Karlin (1924—2007)
- skarn
- skarn-type copper deposit
- skarn-type lead-zinc deposit
- skarn-type molybdenum deposit
- skarn-type scheelite deposit
- Skat
- Skateboarding
- skates
- Skathi
- skating