高级轨道天文观测台
advanced orbiting astronomical observatory
轨道天体观测
orbiting astronomical observation
轨道天文观测
orbiting astronomical observation
轨道天文台
orbiting astronomical observatory
OAO
城市轨道车辆
urban railway car
urban rail car
urban railway vehicle
urban railway vehicles
urban rail vehicle
urban track vehicle
urban rail passenger vehicle
urban railcar set
metro vehicle
transit cars
Mass transit vehicle
城市客运轨道车辆
urban railway passenger cars
urban railway passenger car
urban rail car for passenger transport