Bulldozer rides through the woods, crackling trees:
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Blows on concrete, Hammer and chisel
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Bulldozer starts, expects to be jammed
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Construction of buildings, driving piles,
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Loosening, tightening the nut, Manual ratchet
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Knocking a hammer indoors with an echo
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Diesel engine
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Bulldozer moving
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Work with a shovel
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Bulldozer approaching, jamming
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Plane
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Grinder tool and pipe
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Excavator digs a hole
★★★★★