Ключевые слова: analysis, background, book, bottle, business, chemical, chemistry, colorful, compound, concept, design, desk, education, equipment, experiment, factory, glass, handwritten, hazard, hazardous, illustration, industrial, industry, lab, laboratory, liquid, manufacturing, material, message, note, notepad, office, paper, product, reaction, research, risk, scale, science, scientific, sign, sodium, solution, substance, table, test, text, wood, wooden, workplace,