Unlike PVCs,with SVCs,users are able to dynamically allocate the virtual circuit between an arbitrary pair of endpoints on a frame relay network.是什么意思_Unlike PVCs,with SVCs,users are able to dynamically allocate the virtual circuit between an arbitrary pair of endpoints on a frame relay network.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句