短語詞組短語packet -switching computer communication network 包交換計(jì)算機(jī)通信網(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)Packet -Switching g Network 包交換網(wǎng)絡(luò)all -optical packet switching network 全光分組交換網(wǎng) 返回 packet switching network