azimuth marker generator
Marker marker-assisted selection
exterior marker method and internal marker method
Insertion and deletion marker InDel marker
all-range and all-azimuth
alt-azimuth ground base telescope
alt-azimuth telescope mounting
卧轴–竖轴型望远镜安装结构
卧轴C竖轴型望远镜安装结构
altitude and azimuth circle
altitude and azimuth instrument
altitude azimuth instrument
altitude azimuth method