Ключевые слова: adult, architect, architecture, builder, building, caucasian, checking, communication, construction, contractor, design, development, engineer, engineering, estate, ethnicity, geodesy, hardhat, helmet, industry, job, male, man, mature, measurement, measuring, men, ocuupation, optical, outdoors, outside, person, profession, professional, project, radio, real, safety, set, standing, survey, theodolite, tool, uniform, urban, using, walkietalkie, work, worker,