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: a chain that is attached to the chassis of a motor vehicle (as a gasoline tank truck) and drags on the roadway to ground the chassis and prevent accumulation of static electricity

: a chain that is attached to the chassis of a motor vehicle (as a gasoline tank truck) and drags on the roadway to ground the chassis and prevent accumulation of static electricity

c : a chain that is attached to the chassis of a motor vehicle (as a gasoline tank truck) and drags on the roadway to ground the chassis and prevent accumulation of static electricity

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