In a specialized hopper truck having a large sloped hopper for sand/salt and a belt conveyor in the bottom of the hopper for conveying sand/salt to the back of the truck for {HEAD ~ discharge} into {TAIL ~ a spreader hopper} 
into
In a specialized hopper truck having a large sloped hopper for sand / salt and a belt conveyor in the bottom of the hopper for conveying sand / salt to the back of the truck for { HEAD ~ discharge } into { TAIL ~ a spreader hopper }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL