本地交换网网管
Local switching network management
本地网网管系统
local network management system
扁球网壳
shallow spherical
Network of shallow spherical
带鞋垫的网球鞋
tennis shoes with cushioned insole
涤棉网球裤
terylene drill tennis short
电网网架
Net Frame of Electric Network
power grid framework
grid framework
network structure
多协议以太网网关
multi-protocol Ethernet gateway