Jet printer:
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Fan noise, shutting, Turning on the laptop
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Signal read information, Computer interface
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Computer noise, Communication room
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Photocopy (photocopy)
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Turn on, turn off the old monitor
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Computer mouse movement
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Old computer keyboard
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Turn on, turn off the old computer
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Computer keyboard
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Computer interface, alarm
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General noise, Office work
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Repeatedly pressing a computer mouse
★★★★★