理学 网络防护 释 virtual private network; VPN 虚拟专用网 利用开放性公共网络的基础设施，通过加密、认证和封装等技术为用户创建一条专用隧道，实现不同网络之间和用户同网络之间的安全连接，为用户提供与专用网络等效的安全和功能保障的技术。
网络与数据通信 网络管理与安全 释文 virtual private network, VPN 虚拟专用网络
- land surface temperature inversion
- land survey
- land survey and statistics system
- Land Surveying Ordinance
- Land Survey Measure
- land system
- land system in developing countries
- land tax
- land tax regardless of household size
- land temple
- land tender,auction,listing
- land tenure
- land tenure disputes
- land tenure management
- land title
- land to the tiller
- land transaction
- land transfer
- land transport
- land treatment of wastewater from livestock and poultry farms
- land treatment system
- land trust
- land type
- land type map
- land unit