Bulldozer starts, expects to be jammed:
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Hammer and chisel, blows on concrete
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Circular Saw Blade Closing
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Bulldozer approaching, jamming
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Wood lathe
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Excavator digs a hole
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Screenings, Sand is poured
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Open, close the lid, Tool box
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Grinder tool and pipe
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Excavator, engine noise
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Drill
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Road construction, jackhammer
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Compressor, Build, start, run, shutdown
★★★★★