основний, запасний, резервний, аварійний
emergency service / emergency operations service
FAST PACE
keep pace
pace
pace count; pacing
pace of offensive
pace setter (soldier / vehicle)
keep pace with the armor
set the pace
pace counter
pace off
pace setter
pace survey
pace tally
pace-counter
civil contingency
contingency contracting
contingency operation
contingency operations support
contingency plan (COP)
contingency response program
contingency support
gunner's primary sight (GPS)
officer of primary responsibility
operational contingency support
overseas contingency operations (OCO)
primary (fire) position
primary arm
primary armament
primary burn
primary control surface
primary sector of fire