There is also no discrepancy between how the eye focuses virtual and physical objects, because both are viewed on the same plane.
眼睛对虚拟和实体物件的聚焦方式也没有差异，因为使用者观看时，两者在同一平面上。
This paper presented the virtual telephony network, P_VPN. The architecture of P_VPN includes management layer, transmission layer and control plane.
文章提出了电话虚拟专网P_ VPN安全模型，其体系包括管理层、传输层和控制面。
In order to achieve dynamic management of virtual router, resource management plane was introduced.
为了动态地管理虚拟路由器平台，引入了资源管理平面。
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