Ключевые слова: 25 ml, 50 ml, analyze, background, backlit, beaker, beakers, blue, bottle, chemical, chemistry, clear, close, closeup, color, colour, container, detail, development, different, empty, equipment, four, glass, glassware, gradually, graduated, group, health, industry, instrument, lab, laboratory, measurements, measuring, medicine, nobody, precise, reflection, research, science, scientific, standing, surface, symmetry, testing, tests, tool, transparent, vertical,