астронавігаційний прилад
celestial and satellite navigation systems
celestial navigation system
celestial navigation
instrument takeoff / instrument take-off
position and navigation unit / position navigation unit (PNU)
celestial body
celestial coordinate system
celestial equator
celestial horizon
celestial meridian
celestial monitoring
celestial sphere
celestial time
atmosphere-bearing celestial body
celestial forces
celestial guidance
celestial position finding
celestial reference
celestial-inertial guidance
automated integrated survey instrument (AISI)
board instrument
radiac (instrument)
sighting instrument
survey instrument
instrument criticality
instrument air intake line
altazimuth instrument
angular instrument
counting instrument
driver's instrument panel
visual plotting instrument
fire-control instrument (FCI)