Ключевые слова: accuracy, art, background, celsius, climate, cold, contour, degree, design, element, equipment, fahrenheit, flat, graphic, health, heat, high, hot, icon, illustration, instrument, isolated, line, linear, lineart, measurement, measuring, medical, medicine, mercury, meteorology, meter, object, outline, scale, science, season, sign, summer, symbol, technology, temperature, thermometer, tool, warm, weather,