矿区首级控制网
superior control network in mining area
控制网置平
control networks adjustment with soft fixed points and analysis
控制网优化设计
Optimized design of control network
控制网数据处理软件系统
data processing softwae system of control network
控制网络协议
protocols of network control
控制网络技术
control network technology
控制网络安全
security of control network
控制网建立
establishment of control net
控制网改造
Control network reconstruction
控制网复测
control network repetition survey
控制网定位
location of control net
positioning of control net-work