top dead center (TDC)

верхня мертва точка (ВМТ) (положення поршня, при якому його головка найбільш віддалена від колінчастого вала)

top-attack (top attack; top-down attack )

dead drop / dead-drop exchange

dead-center ignition

bottom dead center (BDC)

table-top exercise (TTX)

top secret (security classification)

thermal undershirt / vest / top

top-carriage trunnion

top-carriage trunnion bearing

be marked top secret

electrically actuated convertible top

flat-top post of front sight

police top brass

top military brass

clearance for top secret work

over-the-top flying

flat-top blade sight

flat-top blade front sight

Joint Information Operations Center /Joint Intelligence Operations Center (JIOC)

surface-to-air missile operations center / SAM operations center (SAMOC)