大视场天文定位
wide field of view celestial positing
单井定向天线
directional antenna in single well
定向天线
beam antenna
directional antenna
directed antenna
directive antenna
direct single bit serial scan path
automatic directional antenna servo system
directional antennas
spray antenna
6-DOF-parallel robot
antenna
directional
beam
短波水平极化定向天线测向
HF DF of horizontal polarization direction antennas
复单元定向天线
multiple-unit steerable antenna {= MUSA
具有定向天线的通信卫星
telecommunication satellite with directional antenna