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steam engine
treadle
derailleur
brake mechanism
spinning wheel
cogwheel
iron wheels
chainring
rumely
seed machine
cog wheels
cranshaw
cog wheel
mainwheels
machinery
chainrings
train engine
drivetrain
wind engine
extruder
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图片
GIF 动图
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linotype
old calculating machine
sewing machine
sewing tools
brake mechanism
calculating machine
the nozzle needle
computer part
mechanism
component
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altar bell
church bell
particular bell
stahlhelm
soldier's helmet
steel helmet
wind vane
horn loudspeaker
automobile hood ornament
measuring bell
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grinding wheel
the nozzle needle
cfm
brake mechanism
machining
applicator
milling machine
wheel hub
seed machine
alligator clamp
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blue light
luminol
uv
fluorescent dye
audiovisuals
blue lamp
motifs of blue stars
chemiluminescence
blue asterisk
photoluminescence
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laser sword
plasma lamp
optical fiber
cybertronians
uv
dreadwing
laserlike
lightsabers
dekaranger
fiber optic light
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centrifuge
main landing gear
technology museum
brake mechanism
hamster wheel
united propeller
hyperbaric
centrifugal
nosewheel
space capsule
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the tonearm
micrometer
microtome
micrometers
gear lever
the nozzle needle
interferometer
sewing machine
cinematograph
microfilming
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minion hulk
bobinski
bigweld
kraang
mwonzora
meka
dakka
bobinska
monster's inc
cog
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moviola
brake mechanism
steam engine
mechanism
straw press
collimator
film reel
machining
milling machine
brewery boiler
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unchain
iron chain
wrought iron
bike black background
chain link
unshackle
lovelock
epicycle
padlock
unlock
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climbing harness
hanging bat
roof truss
fireproofing
ironworker
counterweight
structural steel
ironworkers
garment racks
woman hanging clothes
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bike lamp
derailleur
derailleurs
faucet
water faucet
mixer tap
bicycle bell
chainrings
mirror in a drop
kinetic art
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molten metal
iron pour
annealing
refractories
alloying
metal segments
steelmaking
square steel tube
blacksmithing
brazing
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danube lock
paddlewheeler
fireboats
windlass
mooring dolphin
sternwheelers
sternwheel
mooring rope
fireboat
sternwheeler
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stringing
harp strings
stringed
flyer carousel
basket fibers
hamstringing
spinning wheel
plucked string instrument
wire frame
chitarra
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blacksmithing
armourers
ironmaking
longsword
smithing
armories
medieval weapon
carpathian bells
blacksmiths
waterwheels
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steel tube
steel pipes
aluminum tube
square steel tube
macro rail
steel ropes
stainless rods
conveyors
metal railing
steel
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variometer
multimeters
watchmaking
watchmaker
galvanometer
altimeters
film reel
instrumentation
dials
magnetic compass
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waterwheels
water wheel
waterwheel
the horse at the fountain
galleon ship
chain carousel
wind powered water pump
horse carriage
water crane
ships wheel
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steadicam
prosthetist
prosthesis
prosthetics
main landing gear
roll skates
gear lever
prosthetic
articulated manikin
truncheon