名词
中文翻译：永久性虚拟电路
同义词：
['permanent virtual connection', 'permanent virtual link']
例句：
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1. The companyuses a permanent virtual circuit to connect its servers worldwide.
该公司使用永久性虚拟电路来连接其全球服务器。
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2. The network engineers set up a permanent virtual circuit to ensure seamless communication between the two networks.
网络工程师设置了一个永久性虚拟电路，以确保两个网络之间的无缝通信。
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3. The new protocol promises to eliminate the need for permanent virtual circuits, reducing costs and improving efficiency.
新协议承诺将消除对永久性虚拟电路的需求，降低成本并提高效率。