Excavator starts up, expects to be jammed:
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End of pouring, cement loading, Construction
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Electric hand grinder
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Cutting machine
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Air rivet gun
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Waits, Bobcat Loader Starts Up
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Sandpaper, rough sandpaper
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Bulldozer starts, expects to be jammed
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Excavator approaching, jamming
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The, Construction, loading of cement
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Open, Tool box, close the lid
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Vibratory grinding machine
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Hacksaw, sawing
★★★★★