астрокорекція
celestial body
celestial and satellite navigation systems
celestial coordinate system
celestial equator
celestial horizon
celestial meridian
celestial navigation system
celestial sphere
celestial time
celestial navigation
atmosphere-bearing celestial body
celestial forces
celestial guidance
celestial navigation instrument
celestial position finding
celestial reference
celestial-inertial guidance
border monitoring
boundary monitoring and analysis
communications monitoring
crisis situation monitoring
fallout monitoring station
monitoring arms implementation and compliance activity
monitoring equipment
monitoring immune response
monitoring party
OSCE Special Monitoring Mission (SMM) to Ukraine
passive-tracking monitoring station
radiation monitoring
radiological monitoring
radiological monitoring and survey
sanctions monitoring