Ключевые слова: architect, civil, contractor, control, electrician, electronic, engineer, engineering, examining, expert, expertise, facility, factory, gasoline, general, hard hat, hardhat, helmet, horizontal, industrial, infrastructure, inspector, job, machine, machinery, maintenance, management, manager, manufacturing, measuring, occupation, one person, person, power, production, professional, protection, quality, safety, service, site, smile, survey, technician, tool, uniform, work, working, workshop,