矿井防护系统
protection system in mine
矿井地下水系统
groundwater system of mine
mine groundwater systems
矿城耦合系统
mining district-city coupling system
矿产资源管理系统
mineral resources management system
矿产勘查评价系统
mineral resource exploration and assessment system
髋臼三维记忆内固定系统
Acetabular tridimensional memory-fixation system
宽通带红外系统
wide-passband infrared system
宽频通信系统
wide-band communication system
矿井人员定位系统
coal mine personnel position system