Ключевые слова: bulldozer, coal, construction, copper, digging, dirt, dirt road, dump truck, ecology, equipment, excavation, excavation vehicle, extraction, factory, geology, gold, gravel, heavy, hole, industry, large, limestone, loading, machinery, manufacturing, material, metal, mine, mining natural resources, motion, open, opencast, openpit, openpit mine, ore, pit, power, production, quarry, quarrying, raw, road, rock, shoveling, stone, technology, truck, vehicle, work, workflow,