Virtual layer element theory can be applied into spatial analysis of complicated bridge structures with optional supporting conditions.

可广泛适用于具有任意支承条件的复杂桥梁的空间整体分析。

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This intermediary interprets requests from the virtual system to the host, thereby adding a layer of virtualization between the virtual system and the host.

这个虚拟中介截断了虚拟机系统发往主机的请求，也就是在虚拟机系统与主机之间添加了一个虚拟化层。

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The IEEE 802.1q standard provides the networking standard for VLAN tagging, defining the concept of a VLAN at the MAC layer for virtual isolation of devices.

IEEE 802.1 Q标准提供了VLAN标记的网络标准，定义了设备虚拟隔离中位于mac层的VLAN的概念。

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Some experts have commented that Angel Ambush was not 'real' augmented reality at all, because the virtual angel was just a layer of video manipulated by a human operator, rather than an independent 3D object.

BBC: Augmented reality goes beyond gimmicks for business

Writing an exploit program that can break those virtual boundaries isn't easy, says SANS Web security researcher Johannes Ullrich, and sandboxing would add a significant layer to the Web's armor.

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