регульована опора
jack boot / jack-boot
cross-leveling sleeve
leveling
leveling skids
cross-leveling
cross-leveling gear (of a mortar)
cross-leveling gear
cross-leveling mechanism
cross-leveling screw
cross-leveling screw handle
Jack-in-the-box effect
jack staff / jackstaff
cart jack
cylinder head jack nut collar
cylinder jack nut
jack
jack and pinion rack
jack knifing
jack lift
jack lift point
jack pad
flap jack
horizontal stabilizer control jack
screw jack
aircraft jack
calling jack
landing-gear retraction jack
main jack
nose-gear retraction jack
wing jack
patching jack
external speaker jack