Ключевые слова: building, business, construction, dirt, dirty, energy, equipment, field, fire, flame, gas, human, industrial, industry, iron, job, land, light, line, liquid, male, mask, material, metal, mittens, mobile, nature, oil, pipe, pipeline, plastic, process, protection, road, rust, sand, sands, special, steel, technology, tool, trench, urban, water, weld, welder, welding, work, worker, workers,