地面
ground;the earth’s surface
～部隊(duì)ground forces;land forces/～沉降surface subsidence/～導(dǎo)彈ground missile/～輻射terrestrial radiation;surface radiation/～服務(wù)ground services/～灌溉surface irrigation/～核試驗(yàn)surface nuclear test/～炮兵ground artillery/～衛(wèi)星站ground satellite station/～遙測(cè)裝置ground telemetering equipment/～戰(zhàn)役land campaign