Ключевые слова: background, cable, construction, dig, dirt, district, ditch, drain, earth, electrician, energy, engineering, equipment, excavator, gas, ground, heating, heavy, hole, industrial, industry, infrastructure, installation, laying, networks, new, outdoor, pipe, pipeline, pit, plastic, power, repair, round, sand, sewerage, site, soil, street, technology, telecom, tractor, trench, trenching, tube, underground, water, wire, work,