Adcock direction finder
airborne direction finder
automatic direction finder
beacon direction finder
cathode-ray direction finder
direction finder
测向
定向仪
测向仪
方向指示器
方位仪
探向器
无线电罗盘
测向器
Doppler direction finder
radio direction finder
无线电测向仪
无线电定向仪
无线电测向
定向仪无线电方向寻检器
无线方位测定仪
无线电侧向机
填充蒸馏塔
(Leggett-Williams) fixed point theorem
2008 Beijing Olympic Games Fixed Telecom
500 kV fixed series compensator
a circular section with fixed diameter
a fixed depth of investigation
a fixed prepaid capitated reimbursement system
a system of fixed quotas for grain production