Ключевые слова: broadcast, cell, communications, connection, construction, crane, danger, drill, electricity, energy, environment, equipment, exploration, fuel, gas, gasoline, generation, global, grid, heavy, industrial, industry, machine, microwave, natural, ocean, oil, oilfield, petroleum, pipe, pipeline, plant, platform, pole, pollution, power, production, pump, radio, relay, resource, rig, sea, sky, steel, structure, telecommunications, telephone, transponder, wave,