The architecture of metro optical network, networking principles and the selection of optical fiber cable are discussed in accordance with metro networkpositioning and function.
根据城域网的定位及作用，对城域光网络的结构、组网原则和光纤选用等问题进行了讨论。
2
Under the OSSS contract, Harris provided operations, maintenance and support services to the Air Force Satellite Control network and Global Positioning System ground networks.
根据这份OSSS合同，哈里斯公司为美国空军卫星控制网络和GPS地面网络提供了运行、维护和支持服务。
3
The rising star will join seven other satellites already in orbit to form a network which will eventually provide navigation and positioning services around the globe.