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brake mechanism
magnetron
mechanism
piston valve
spectroscope
trunnion
detector
two-stage lock
spectrometers
micrometer
magnetrons
turbogenerator
ferromagnet
tensioner
extruder
pressure regulator
wheel hub
bolometer
ferromagnets
collimator
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图片
GIF 动图
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m4a1 carbine
assault rifle
dpms
bushmaster
armalite
tippmann
dmr
gpmg
dissipator
semi-automatic gun
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spectrophotometer
spectrographs
laserwriter
compact fluorescent lamp
chromatographic
spectrometer
spectrograph
film strip
chromaticity diagram
microstrip
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tokamak
trunnion
crankshafts
drive axle
turbogenerator
cryovac
turbo jet engine
turbojet
sidevalve
wheel hub
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photomultiplier
photomultipliers
wheel hub
halogen bulb
pressure regulator
antihydrogen
piston valve
triode
sidevalve
potentiometer
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cube stilt houses
cutaways
quadruplex
subframes
spectrograph
rhombohedral
sketchup
extruder
two-stage lock
cutaway
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battery icon
alkaline batteries
aa battery
thread roll
inductor
power cable
interconnector
arrestor
cylinder
battery cell
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condenser microphone
interconnector
connector
connectors
two-stage lock
thermostatic
usb microphone
rectangular components
studio microphone
electrical clamp connector
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lens extender
telephoto lens
cable reel
cylinder
camera lens
teleconverter
tripod ball head
isolated product image
rifling
photo lens
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calorimeter
field drum
spectrograph
crayon frame
percussion instrument
straw press
instrument
sugar cane press
basket fibers
musical instrument
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suv headlamp
trunnion
hub cap
design of the rims
helmet plate
flanges
discala
valve cap
wheel hub
extension ring
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graphic card
spectrograph
evaporator
cutaways
rectangular components
cutaway
microstrip
photomultiplier
spectrometer
cart transparent
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speech icon
comic speech bubbles
speech balloon
blog speech bubble
speech bubbles
survey icon
speech bubble
speech balloons
dialogs
info symbol
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directional sign
wooden arrow sign
choose the right direction
directionally
signposting
arrow pointing up left
signposts
go left or right
arrow direction
directional
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microfilm
watchband
magnifying lens
magnetic tape
spectrograph
spectrographs
magnifier glass
oval frame
parabolic mirror
spectrometer
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hemolysis
hemoglobinuria
creatinine
phlebotomy
hematuria
erythrocyte
erythropoiesis
carboxyhemoglobin
hematocrit
biosamples icon
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calorimeter
spectrograph
bass drum
coconut water processing machine
cable drum
cutaways
drum kit
snare drum
tokamak
fluidized
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lens extender
telephoto lens
cable reel
cylinder
camera lens
tensioner
teleconverter
bushings
couplings
tripod ball head
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rectangular components
subframes
tailplane
two-stage lock
crossbeam
extrusions
mechanism
rudder fork
ventilation clamp
parallelogram
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candelabra
candelabrum
candleholder
candlestick for three candles
menorah
candle holder
candle holder with handle
candelight
candlestick
steel candlesticks
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harness seat of a paraglider pilot
chairs
seating furniture
bar stools
chair
rectangular components
new concept arms chair
tailor seat
bargeboards
cinema seat