фаска клапана
volte-face / volte face
face-to-face combat
face-to-face contact
check valve / non-return valve
non-return valve / check valve
block face
breech face
desertion in the face of the enemy
face of the bolt
face paint
Future Airborne Capability Environment (FACE)
home-made face filter
muzzle face
armor ballistic bullet proof face mask
armor face
armor face mask
face-hardened armor
ricochet off the armor face
the face of opposition
trunnion face
double-face hammer
face of bolt
face of cylinder
face of piston ring
face of the cylinder
face of the muzzle (of the piece)
guide face
back face of a shock wave
camber face of an aerofoil
camber face of an aerofoil section
wing face
suction face of a propeller blade