Ключевые слова: adjustment, adviser, antifreeze, car, closeup, concentrated, control, coolant, cropped, density, determining, diagnostic, electrolyte, employment, examine, fix, fluid, freezing, garage, had, holding, inspection, instrument, job, machine, maintenance, male, master, mechanic, optical, point, portable, process, professional, refractometer, repair, repairman, restore, service, serviceman, skilled, station, test, tool, vehicle, washer, windshield, work, workplace, workshop,