groundivy欧亚活血丹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 artillery radar地炮雷达Ground Liaison Section地面联络组ground sensors network地面传感器网络ground covering extent地面覆盖范围Ground state solutions最小能量解ground penetrating SAR地表穿透合成孔径雷达groundwater irrigation地下水灌溉Ground connection form接地型式Ground-glass opacity磨玻璃影groundwater assessment地下水评价