Ключевые слова: backgrounds, beaker, biochemistry, biology, blue, bottle, chemical, chemist, chemistry, clinic, concentration, container, cylinder, development, discovery, education, equipment, experiment, expertise, flask, glass, industry, instrument, laboratory, liquid, material, measurement, medical, medicine, microbiology, occupation, protective, research, sample, science, scientific, scientist, structure, substance, technician, technology, test, toxic, transparent, tube, tubing, variation, water, white,