陀螺定向仪旋转和解锁机构
gyro spinning and unlocking mechanism
电罗经天文导航系统
gyro erectional navigation
陀螺罗经天文导航系统
gyro erectional navigation
大视场天文定位
wide field of view celestial positing
单井定向天线
directional antenna in single well
地面测绘天文经纬仪
terrestrial mapping astronomical theodolite
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