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a flashlight
spark plug
screwworm
tactical flashlight
atomizer
drill bit
the nozzle needle
torch tip
push pin
tappets
aluminum tube
insulin syringe
phillips screwdriver
countersink
co2 cylinders
thumbscrews
vector screw
driveshaft
micrometer
cylinder head screw
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GIF 动图
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disposable syringe
train syringe
insulin syringe
syringes
electronic cigarette
the nozzle needle
injectivity
atomizer
microinjection
injectable
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halogen bulb
magnetotail
electric megaphone
plasma lamp
electroscope
nacelle
kilogram
superconducting
propellants
incandescent lamp
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load plug-in connection
fridge lock
water dispenser
compact fluorescent lamp
wall lamp
connector
water faucet
thermostatic
mixer tap
two pin plug
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plasma lamp
a flashlight
portable light
photocells
led lamp
torch tip
electroluminescence
halogen bulb
energy-saving lamp
compact fluorescent lamp
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stylus
cosmetic brush
black pencils
pencil icon
pen nib
blackwing
beautiful pencil
mechanical pencil
livescribe
drill bit
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aluminum tube
rechargeable battery
supercapacitor
a flashlight
supercapacitors
pencil battery
rechargeable batteries
co2 cylinders
square steel tube
passivation
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showerhead
dish brush
macgyver knife
ventilation clamp
handheld electric megaphone
mixer tap
the nozzle needle
meat tenderizer
water tap
micrometer
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turbo jet engine
nozzle
bike black background
bike lamp
jet engine
bicycle bell
wheel hub
pressurized water pipe
mercedes engine
bmw engine
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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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load plug-in connection
fridge lock
insteon
water dispenser
power socket
kitchen socket
water faucet
mixer tap
compact fluorescent lamp
thermostatic
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disposable syringe
train syringe
drill hammer
handheld electric megaphone
applicator
laryngoscope
the nozzle needle
stylus
insulin syringe
ophthalmoscope
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centrifuges
watchmaking
centrifuged
centrifuge
centrifugation
vials
cyclotrons
photomultipliers
antihydrogen
liposomes
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pocket tool
laryngoscope
gaspipe pliers
hand scarifiers
scalpel
forceps
scalpels
the nozzle needle
pipe tongs
hemostatic
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the tonearm
micrometer
microtome
micrometers
gear lever
the nozzle needle
interferometer
sewing machine
cinematograph
microfilming
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endoscopes
passivation
laryngoscope
co2 cylinders
oxygen cylinder
laryngoscopy
endoscope
ophthalmoscope
penetrant
suction nozzles
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automotive ac cylinder
xlr
rechargeable battery
oxygen cylinder
connector
oxygenator
electrical clamp connector
inhaler
interconnector
rechargeable drill
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aluminum tube
abloy
electrolux
stainless steel
thermostatic
zwilling
cylinders
mufflers
co2 cylinders
stylus
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stainless steel screw
vector screw
cylinder head screw
screwworm
push pin
zip fastener
the nozzle needle
fastener
airscrew
drill hammer
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electrospinning
ball milling cutter
schunk
milling machine
stereolithography
double head microscope
fluidized
sputter
spiral bevel gears
water jet
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locket
bottle cap
valve cap
pocket watch
magnetic compass
bell button
circular ring
wristwatch
loupe
watchmaking