网络与数据通信 网络管理与安全 释文 security association database, SADB 安全关联数据库
- cometary astronomy
- cometary burst
- cometary dust
- cometary dust tail
- cometary dynamics
- cometary flare
- cometary gas
- cometary gas tail
- cometary globule
- cometary halo
- cometary head
- cometary hydrogen cloud
- cometary HⅡ region
- cometary ion
- cometary meteor
- cometary molecule
- cometary nebula
- cometary neutral tail
- cometary nucleus
- cometary orbit
- cometary outburst
- cometary pause
- cometary physics
- cometary plasma
- cometary proplyd