機器
across
actuator
close up
commercial
crane
deprecated
detail
device
drive
economy
engineering
equipment
gear
gear rim
gearing
germany
historical
historical art
historical technique
historically
horizontal
horizontally
industrial
industry
instrument
iron
landscape
machinery
magdeburg
mechanic
mechanical
mechanics
metal
metallic
motion
move
nut
old
old technology
out there
outdated
outdoor
outdoors
outside
port
power
profession
propulsion
ring gear
robust
screw
serrated
serration
steel
strength
technique
to turn
tooth
tooth type
toothed
toothing
translation
turn
utensil
wheel
work