侦察

reconnoitre;scout
进行～活动conduct reconnaissance;carry out reconnoitring activities/敌后～ reconnoitre the enemy rear/火力～ reconnaissance by fire/～敌情gather intelligence about the enemy/～兵scout/～部队reconnaissance troops(or unit);scouting force/～飞行reconnaissance flight/～机reconnaissance plane;scout/～卫星spy(or reconnaissance)satellite/～员scout