U-подібний проріз (про поршень двигуна)
permanent slot
slot
slot-type groove
indexing slot
time slot
advance slot
cross slot
valve head slot
ejection slot
end slot
extractor slot
half slot
guide slot
multi-slot muzzle brake
slot cooling
key slot
vision slot
terminal slot cover
longitudinal slot
longitudinal slot in broad face
longitudinal slot in narrow face
longitudinal-slot antenna array
longitudinal-slot array
commissioned slot
gas piston
piston
piston pin
short piston travel
recuperator piston
recuperator-piston rod
recuperator-piston rod nut
replenisher piston head