Ключевые слова: and statistics, and the sky, business, china, control, crude oil, derrick, drilling, energy, engineering, engineers, equipment, exploration, field, fuel, gasoline, helmets, in the evening, industry, live, machine, manufacturing, metal, natural gas, oil, oil field drilling, oil refineries, outdoor, outline, people, person, pipeline, power, profession, pump, resource view, sunsets, technology, work, workers,