HF GWR radar receiver  高频雷达接收机

HF wideband digital reconnoitering receiver  短波宽带数字侦察接收机

(HF-DF) Chemical (HF-DF) Lasers  化学激光

HF ground wave radar (HF-GWR)  地波超视距雷达(HF-GWR)

HF-SWR(HF-Surface Wave Radar)  高频地波雷达

enhanced group calling receiver {= EGC receiver}  强化群呼接收机

(Hf) hafnium  铪

4-89HF  偶锑基

Ab initio HF method  从头算HF方法

adaptive HF station  自适应短波电台

adjustable dipole HF antenna  可调偶极高频天线

airdrive HF hot-unionizer  气动高频热合机

air-ground HF communication  短波地空通信

alternating HCl HF acid  交替土酸

Anti-HF treatment  抗心衰治疗

atmospheric HF analyzer  大气中氟化氢浓度分析仪

automated HF radio networks  HF全自动网络

buffer regulated HF acid  有机土酸

cathode-ray HF direction finder  阴极射线[高频]测向仪