groundproxn.[空](为避免撞地而装在飞机上的)贴地飞行导航仪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 leakage resistance漏地电阻ground pressure in stopes采场地压groundwater storage curve地下水储量曲线Ground Point of Intercept地面截击点grounded theory education基础理论教育ground effect flight test地面效应飞行试验ground application system地面应用系统ground based radar beacon地面雷达信标ground surface subsidence地表沉降ground made hard by frost冻硬的土地