defencesn.防御工事名词defence的复数形式.=defenses.
defencen.防御;答辩;防务
defence in extremely frigid area高寒地区防御
Defence Helicopter Flying School数据服务
Defence Traffic Management Board国防交通管理局
defence technique in falling down倒地防守技术
defence against biological weapon生物武器防护
Defence against Ballistic Missile反弹道导弹防御
Defence Analytical Services Agency国防分析勤务署
Defence Blood Transfusion Services国防输血服务