您要查找的是不是：
- These channels are not dedicated physical connections,but are permanent virtual connections or switched virtual connections that are deconstructed when no longer needed. 这些信道不是专用的物理连接，而是永久虚拟连结或交换的虚拟连结，当再不需要时，这些连结可以拆掉。
- These channels are not dedicated physical connections, but are permanent virtual connections or switched virtual connections that are deconstructed when no longer needed. 这些信道不是专用的物理连接，而是永久虚拟连结或交换的虚拟连结，当再不需要时，这些连结可以拆掉。
- switched virtual connection 交换式虚连接
- VCI?Virtual Connection Identifier? 虚拟连接标识符?
- However,the concern is that voice traffic in frame environments built with permanent virtual circuits (PVC) will not be as cost-effective as frame nets built with switched virtual circuits (SVC). 但问题是，用永久虚拟电路（PVC）建立起来的帧环境中的话音通信的性能价格比不如用交换虚拟电路（SVC）建立起来的帧网络。
- Researches on nonblocking properties of large-scale clos-type ATM switching fabrics with virtual connection routing[J].Chinese Journal of Electronics,1999,27(10):15-18. Clos型大规模ATM交换网络的虚连接无阻塞特性研究[J].;电子学报;1999;27(10):15-18
- However, the concern is that voice traffic in frame environments built with permanent virtual circuits (PVC) will not be as cost-effective as frame nets built with switched virtual circuits (SVC). 但问题是，用永久虚拟电路（PVC）建立起来的帧环境中的话音通信的性能价格比不如用交换虚拟电路（SVC）建立起来的帧网络。
- Main function: One-turn-three function Slant-stress design: Many dynamic experiments have shown that sockets in a proper angle can reduce self-stress and avoid virtual connection and fire striking. 主要功能:一转三功能仰角受力设计:经过大量的力学实验,选择最佳倾斜角度,减缓重力作用,避免虚接打火。
- Alarm Indication Signal (AIS) and Remote Defect Indicator (RDI) OA&M cells report faults on ATM virtual connections. 警告指示信号（AIS）和远地缺点指示符（DRI）的OA&M信元报告ATM虚拟连接的故障。
- Alarm Indication Signal (AIS) and Remote Defect Indicator (RDI) OA &M cells report faults on ATM virtual connections. 警告指示信号（ais）和远地缺点指示符（dri）的oa &m信元报告atm虚拟连接的故障。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- virtual connection topology sub graph 虚拟连通拓扑子图
- SVC Switched Virtual Circuit or Signaling Virtual Circuit 交换式虚电路或发信号虚电路
- neutral point virtual connection 中性点虚接
- basic section of a virtual connection 虚连接的基本段
- Our glasses have been switched this is mine. 咱们的玻璃杯对调了－－这个是我的。
- I grope for the light switch in the dark room. 我在黑洞洞的屋里摸索著寻找电灯开关。
- The switch on the kettle won't stay down. 这个水壶上的开关按下时卡不住了。
- The block becomes magnetic when the current is switched on. 通电时线圈即具磁性。
- The loop becomes magnetic when the current is switched on. 通电时线圈就会有磁性。
