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
- The Roland Garros Stadium
- the role of editor
- the role of individual in history
- the role of public administrators
- the roll of the charters/Charter Roll
- The Romance at the Ruixian Pavilion
- The Romance of a Scholar and Two Girls
- The Romance of the Lute
- The Romance of the Three Kingdoms
- The Romance of the White-hair Maiden
- The Romance of Three Kingdoms
- The Romance of West Chamber in Zhugongdiao-Style Songs
- The Romancing Star
- The Romantic Swordsman
- theront
- the rope class falling objects fishing
- theropods
- The Rose and the Cross
- the Rose Apple Literary Society
- The Rotterdam Convention
- The Round House
- The Rout/The Nineteen
- The Roving Swordsman
- the row-boat dance
- The Royal Ballet of Cambodia Play