air-ground control radio station
airport ground control tower
detection of single phase_to_ground line
detection of single phase-to-ground line
few ground control point
GCE Ground Control Equipment
GCP Ground Control Point
Ground Control
矿压控制
基线
岩层控制
控制
地平绵
地面控制
地面管制
接地控制
ground control approach
ground control equipment
ground control of approach radar
ground control of interception radar
ground control point for aerial photography
Ground control point with equal elevation