管理学 防火墙技术 释 firewall 防火墙技术 位于两个信任程度不同的网络之间（如企业内部网络和Internet之间）的软件或硬件设备的组合，对两个网络之间的通信进行控制，通过强制实施统一的安全策略，防止对重要信息资源的非法存取和访问以达到保护系统安全的目的。
网络与数据通信 网络管理与安全 释文 firewall 防火墙
- directional selectivity
- directional sensor network
- directional solidification
- directional supplementation and draining method
- directional survey telemetry
- directional valve
- directional variation
- directional view
- directional well tool
- direction angle
- direction bias
- direction bias sampling method
- direction coefficient
- direction cone
- direction constancy
- direction correction of Gauss projection
- direction cosine
- direction cosine algorithm
- direction curve
- direction density
- Direction des Archives de France
- Direction des constructions Aeronautiquue
- direction-determining board
- direction field
- direction finder