основний напрямок вогню / стрільби
principal direction of fire (PDF)
principal attack
principal duty
principal military requirement (PMR)
principal position
principal reserve
principal
Principal Subordinate Command (PSC)
principal distribution depot
principal currency / reference currency
world map of principal aeronautical features
principal motion
principal subordinate commander
principal longitudinal axis
slant fire; diagonal fire; oblique fire; fire to the oblique
fire direction center (FDC)
group fire direction center
fire direction (FD)
tactical fire direction
technical fire direction
fire direction chart
fire direction net
fire direction order
fire direction technique
fire-direction chart
alternate fire direction net
common fire direction
fire direction and control system
fire direction communication
fire direction computer
fire direction exercise
fire direction section