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refractometer
iconoscope
spectroscope
spectrometer
combustor
astrascope
spectrometers
a pistol shaped gland
ophthalmoscope
magnetotail
micrometer
bronchoscope
fernandopulle
chromaticity diagram
calorimeter
collimation
magnetron
photometer
mechanism
photoionization
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GIF 动图
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pressure measurement
electroscope
oxygen cylinder
viscometer
arithmometer
calorimeter
co2 cylinders
photoionization
magnetotail
lubricator
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double-walled glass
cylinder
calorimeter
borosilicate
microlitre
loading column
glass container
ballot box
thin-walled glass
cart transparent
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tokamak
turbogenerator
sidevalve
brake mechanism
turbo jet engine
internal-combustion engine
rotary valves
combustor
turbojet
turbocharger
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magnetohydrodynamic
magnetohydrodynamics
ferromagnet
light waveguide
hydrodynamic
waveguides
microscale
ferromagnets
rectangular components
magnetostriction
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viscometer
radiometers
apparatus
newton's cradle
distillation
mechanism
titrations
electroscope
gravimeter
the tonearm
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c clamp
mechanism
square tubing
rope tensioner
isostructural
flat head clamp
submanifolds
hyperboloid
pseudoknot
connecting rod
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automotive ac cylinder
potentiometer
solenoid
lubricator
pressure regulator
piston valve
solenoids
voltage regulator
spark plug
injectors
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cape dutch
acadiana
state flag
bendera
acadian
georgia
surveyusa
hollanda
bophuthatswana
nc
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microtome
mantlet
rotary valves
calorimeter
double head microscope
trunnion
impeller
univalve
atpase
sidevalve
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microfluidic
magnetohydrodynamic
ferromagnet
ferrimagnetic
photodetector
ferromagnets
nanolithography
ferromagnetic
light waveguide
magnetohydrodynamics
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hand drums
hand drum
small drum
toy drum
field drum
bass drum
snare drum
drummed
percudani
dholak
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hand draw vector arrows
airfoils
pencil icon
isolated product image
aerogels
myoblasts
microfluidic
airfoil
magnetohydrodynamic
extrusions
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plasma ball
the nozzle needle
pyrotechnic
pyroelectric
plasma lamp
sigmoidoscopy
polymerization
torch tip
cystoscopy
electromagnet
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cylinder
transparent image
cart transparent
calorimeter
double-walled glass
borosilicate
transparent background
microlitre
loading column
large resizable
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circular ring
iconoscope
extension ring
rotating beacon
ellipsoid
lab mouse top view
circular ornament
circle segment
centrifugal
diaphone
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plasma lamp
loading column
ellipsoid
ellipsoids
multilevel
light waveguide
cylinder
column chart
microfluidic
ferromagnets
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pencil battery
ring binders aligned
bookmarker
digipen
metamaterial
page dividers
magnifying lens
colored crayon
booksurge
spiral binding
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ultrafiltration
compact fluorescent lamp
modbus
adhesives
offset printing
compressed air
profibus
automotive ac cylinder
applicator
microliter
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large resizable
cart transparent
framebuffer
transparent image
computer mouse cursor
bitmapped
windows 95
computer graphics
png image
transparent background
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beamwidth
ellipsometry
stereograms
multipolarization
eigenvectors
microsimulation
light waveguide
wavefunction
photomultipliers
wavefronts