Virtual Reality has the advantage of apperceiving and experiencing geographic data, which makes up the deficiency of GIS.
虚拟现实技术在创建和体验虚拟世界中的优势可以弥补地理信息系统对地学数据的感知和体验上的不足。
In addition, considering the COMNET's deficiency of the secrecy and real-time, another scheme of Virtual Private Network (VPN) based on GPRS combining fiber is brought forward.
另外，针对公网通信保密性和实时性方面的不足，提出一种GPRS网络结合光纤通信的虚拟专用网的通信方案。
The design and the implementation of virtual simulation training system overcomes the deficiency of traditional on-site training system, at the same time, improves the vivid of training system.
虚拟仿真培训功能的设计与实现，不仅克服了传统的场地培训方式带来的缺点，而且提高了培训的逼真性。
The design and the implementation of virtual simulation training system overcomes the deficiency of traditional on-site training system, at the same time, improves the vivid of training system.
虚拟仿真培训功能的设计与实现，不仅克服了传统的场地培训方式带来的缺点，而且提高了培训的逼真性。
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