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cable reel
galvanometer
gravimeter
magnetron
film projector
transducer
gas stove
kinematograph
gas burner
microtome
iconoscope
dehydrator
stroboscope
encoders
potentiometer
isolated product image
calorimeter
grinding wheel
radiophone
spectrometers
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GIF 动图
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cable reel
galvanometer
gravimeter
magnetron
film projector
gyroscopes
ampex
colorimeter
gas stove
kinematograph
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digital bi-amp powered loudspeaker
sundown audio car audio
preamplifier
stereo system
galvanometer
multirotor
audiovox
audio speakers
voltage regulator
audiotex
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attenuator
voltage regulator
attenuators
photocell
potentiometer
digital bi-amp powered loudspeaker
transceiver
hakko
nanosatellite
transducer
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srl camera
zenit camera
nintendo gamecube
paxina camera
tripod head
galvanometer
vintage box camera
carburetor
gas burner
tripod ball head
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photomultiplier
vintage box camera
paxina camera
box camera
cajon microphone
photomultipliers
digital bi-amp powered loudspeaker
attenuator
galvanometer
safes
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rotary valves
brake mechanism
gas burner
agricultural machinery
rc model
mantlet
seed machine
carburettors
motor screen
cable reel
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masterdisk
magnetic tape
grammophon
gramophone record
magneto-optical disk
cable reel
cd drive
ampex
vinyl player
the record machine
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twin-lens reflex
paxina camera
filmtec
movie camera
film projector
photomultipliers
cinematronics
film reel
photomultiplier
twin lens reflex
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hydrophone
hydrophones
photocell
square tubing
stroboscope
galvanometer
cable reel
condenser microphone
solenogasters
tripod head
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digital bi-amp powered loudspeaker
voltage regulator
heatsink
opteron
potentiometer
pc speaker
nanosatellite
uninterruptible power supply
thermoelectric
power supply
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electronic drum pad
exhaust fan
ampex
cable reel
calorimeter
galvanometer
diaphone
the tonearm
compact fluorescent lamp
gas burner
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nanosatellite
base plate
compactpci
cubesat
voltage regulator
cryosat
attenuator
digitizer
galvanometer
radiosonde
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twin lens reflex
vintage box camera
galvanometer
agfa isolette
6x9 film camera
kinetoscope
mutoscope
twin-lens reflex
microfilming
paxina camera
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photocell
led lamp
photoelectric
photometric
photometer
halogen light
retro kerosene lamp
colorimeter
photosensitizer
photomultiplier
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potentiometer
potentiometers
solenoid
solenoids
voltage regulator
wire tensioner
automotive ac cylinder
packbot
magnetometer
battery terminals
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photomultiplier
attenuator
potentiometer
voltage regulator
photocell
solenogasters
nanosatellite
solenoid
attenuators
thyristor
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calorimeter
autoclave
voltage regulator
gravimeter
magnetometer
compactpci
cubesat
sterilizer
lead storage battery
nanosatellite
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digital bi-amp powered loudspeaker
colorimeter
pulse oximeter
photocell
photometer
micropal
rechargeable battery
spectrophotometers
spectrophotometer
spirometer
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tabulator
pasta maker
jerrycan
gas stove
spectrophotometer
photocell
colorimeter
petrol lighter
gas burner
sterilization equipment
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paxina camera
twin lens reflex
vintage box camera
enlarger
6x9 film camera
photo equipment with full-size
nanolithography
calorimeter
colorimeter
box camera