Geac贾克GEabbr.美国通用电气公司（=General Electric Coabbr.地面设备（=ground equipment）abbr.锗（=germanium）geospatial information resources空间信息资源Geotechnical composite materials土工合成材料geomagnetic Pt type pulsation Pt型地磁脉动geological structure of the mine矿区地质构造geological environmental problem地质环境问题geomorphological regionalisation地貌的区域化geomagnetic relative observation地磁相对记录geologic evolutionary inflection地质演化转折geological condition constraints地质条件约束geosynthetic reinforcement layer加筋垫层