Ключевые слова: activity, aggregate, belt, building, construction, conveyor, crush, crusher, development, earth, engineering, equipment, excavation, excavator, factory, heavy, industrial, industry, job, landscape, line, machine, machinery, manufacturing, material, metal, mine, mineral, mountain, pit, plant, production, pulverize, quarry, quarrying, rock, sand, sandpit, site, stone, technology, transportation, work,