平整土地测量
survey for land smoothing
survey for land consolidation
土地平整工程
Land leveling engineering
带筒子架的整经机
warping machine with bobbin creel
地平经纬仪
altitude and azimuth instrument
azimuth and altitude instrument
altitude and aziimuth circle
altazimuth
altitude azimuth instrument
altitude and azimuth circle
altazimuth instrument
alt-azimuth