短語詞組短語packet -switching service network 包交換業(yè)務(wù)網(wǎng)Packet -Switching g Network 包交換網(wǎng)絡(luò)public packet -switching network 公共分組交換網(wǎng)private packet -switching network 專用分組交換網(wǎng)network packet -switching interface 網(wǎng)絡(luò)包交換接口 返回 packet-switching