Virtual age虚拟工作时间virtualadj.实质的；【计】虚拟的virtual analog switching points拟实模拟交换点virtual projection oscilloscope虚拟投影示波器virtual transportation networks虚拟运输网络virtual reality markup language虚拟现实置标语言virtual calculating environment虚拟计算环境Virtual Expanded Memory Manager虚拟扩展内存管理器virtual supply chain management虚拟供应链管理virtual organization management虚拟组织管理virtual program rs base segment虚拟程序基段virtual construction enterprise建筑虚拟企业