standard unit
типова частина (підрозділ)
типова частина (підрозділ)
battery coolant unit / battery-coolant unit (BCU)
gear reduction unit / gear-reduction unit
position and navigation unit / position navigation unit (PNU)
military standard requisitioning & issue procedure (MILSTRIP, NATO)
standard installation / division personnel system (SIDPERS)
standard operating procedure(s) (SOP)