Ключевые слова: activity, bore, bulldozer, business, clay, concrete, construction, construction equipment, construction industry, construction site, development, digging, dirt, dredger, drill, drilling, dump truck, engineer, engineering, equipment, excavation, excavator, freeway, gravel, highway, horizontal, hydraulic, industrial, industrial equipment, industry, investment, labor, land vehicle, machinery, mining, process, repairing, road, rod, sky, soil, structure, technology, tools, tractor, transportation, vehicle, worker, working, workplace,