对绞线Twisted wire同轴电缆Coaxialcable光缆FiberOptic陆基微波Land based Microwave通讯卫星Satellite蜂窝网Cellularradio无线LANWireless LAN对绞线 Twisted wire 同轴电缆 Coaxial cable 光缆 Fiber Optic 陆基微波 Land based Microwave 通讯卫星 Satellite 蜂窝网 Cellular radio 无线LAN Wireless LAN