Ключевые слова: belt, breakstone, bulldozer, chips, classifier, construction, conveyor, crush, crusher, crushing, cut, dirt, dozer, dust, environment, equipment, excavation, excavator, exploitation, extraction, factory, feeders, gravel, industry, limestone, machine, machinery, manufacturing, material, metal, mills, mine, mining, nature, nobody, outdoor, pile, pit, pollution, quarry, rock, rubble, separate, separation, stone, tractor, transportation,