Franking machine:
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Closes the CD / DVD tray, Opens
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General noise, Office work
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Computer interface, alarm
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Turning on the computer, fan noise, shutting
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Turn off the old computer, Turn on
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Laser printer
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Computer interface, signal read information
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The USB flash drive is inserted, removed
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Double click computer mouse
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Computer mouse click
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Franking machine
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Photocopy (photocopy)
★★★★★