Photocopy (photocopy):
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Environmental sounds, typewriter, Office work
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Turn on, turn off the old monitor
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Turn on, turn off the old computer
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Fan noise, shutting, Turning on the computer
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Signal read information, Computer interface
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Franking machine
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Computer interface, alarm
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Double click computer mouse
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Shutting, Turning on the laptop, fan noise
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Jet printer
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Removed, The USB flash drive is inserted
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Disc read, CD / DVD drive
★★★★★