packet-switching network分组交换网
packet-switching services分组交换服务
packet-switching service network包交换业务网
Packet-Switching -work包交换网络
public packet-switching network公共分组交换网
private packet-switching network专用分组交换网
network packet-switching interface网络包交换接口
Packet-Switching g Network包交换网络
N-UNCOUNT（不可数名词） Packet switching is a method of sending computer data on telephone lines that automatically divides the data into short pieces in order to send it and puts it together again when it is received. 通信包交换技术 [计算机]