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| 英语 词库 | |||
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| FR (Telephony, Networking) | |||
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| A packet-switched wide-area-network WAN technology that provides faster performance than older packet-switched WAN technologies (Best suited for data and image transfers. Because of its variable-length packet architecture, it is not the most efficient technology for real-time voice and video. In a frame-relay network, end nodes establish a connection via a permanent virtual circuit (PVC)) | |||