groundmassn.合金的基体groundn.地面；地方；根据；主题；立场；水平；背景v.使停飞；困在家中；放在地上；使 ... 搁浅；打基础动词grind的过去式和过去分词形式ground information processing system全球信息处理系统Ground Observer Aircraft Recognition地面观察员飞机识别grounding grid of hydropower station水电站接地网ground signals for parachute jumping地面指挥信号grounding via arc-suppression coil消弧线圈接地方式Ground Right-Angle Reference Frame大地直角坐标系groundwater and environment problems地下水及其环境问题Ground Support Maintenance Equipment地面支援维修设备Ground Plane available on request.接地面积可根据客户要求调整。ground-state disintegration energy基态衰变能