Lab accident:
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The subject falls on the wooden floor.
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Harvesting machine
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Room noise
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Church, the noise of the crowd in the floor
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Fussing in the thicket, rustling leaves
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Servo motor
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Scratch
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Blow into the microphone
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Knocking, The noise of the elevator
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Throw a match and a glass container
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Electrical appliance, The noise of the room
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Lab accident
★★★★★