Ключевые слова: abstract, background, bore, bored, bulldozer, car, closeup, construction, deep, dig, drill, dry, earth, energy, engineering, equipment, exploration, field, fuel, gas, gasoline, geology, geothermal, ground, hole, industrial, industry, machine, machinery, mechanical, metal, mine, minerals, mining, natural, nature, outdoors, pattern, pit, power, rig, shovel, site, sky, soil, technology, wall, water, well, work,