Bobcat loader starts up, waits, shuts down:
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Electric surface grinding machine
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Construction, end of pouring, cement loading
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Plane
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Loosening, Manual ratchet, tightening the nut
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Leaves, The bulldozer starts
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Electric saw
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Staple gun
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Tool box dragged across the floor
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Sand is poured, screenings
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Screwdriver screwing a screw into a tree
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Hammer hammering a nail into a tree
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Construction, concrete processing
★★★★★