Ключевые слова: architectural, biginch, building, civil, conduit, construction, crane, development, energy, engineering, environment, equipment, fitting, gas, gasoline, gaspipeline, heavy industry, industry, largediameter, line, machine, metal, natural, oil, operations, petroleum, pipe, pipe lining, pipelaying, pipeline, pipelining, piping, power, pressure, structural, supply, technique, technology, transfer, transmission, transport, transportation, trunk, tube, tubing, working,