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oxygenator
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spirometer
electric megaphone
oxygen bottle
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oxygen cylinder
endoscope
spirometry
car vacuum cleaner
usb microphone
electroscope
energy-saving lamp
bronchoscope
police siren
horn loudspeaker
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pulsejet
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cannula
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tracheostomy
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halogen bulb
insulator
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energy-saving lamp
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disposable syringe
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cannula
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halogen bulb
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microplane
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hydrophone
radio antenna
connector
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photodiode
usb microphone
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interconnector
endoscope
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cannula
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halogen bulb
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medical instrument
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hydrometer
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push pin
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microphone stand
tripod head
hydrophone
usb microphone
light stand
camera tripod
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condenser microphone
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irig
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disposable syringe
insulin syringe
syringes
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injectable
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laryngoscope
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hanging lamp
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