Virtual age虚拟工作时间virtualadj.实质的；【计】虚拟的virtual multi-point bridging虚拟多点桥接virtual machine assist feature虚拟机辅助功能, 虚拟计算机辅助特点virtual technology application虚拟技术应用virtual displacement principle虚功原理virtual value -added service网络虚拟增值服务virtual prototyping technology虚拟样机技术Virtual - reality techniques虚拟技术virtual boundary element method虚边界元法Virtual Server via IP Tunneling在分析隧道实现虚拟服务器的方法virtual crack closure technique虚拟裂纹闭合法