Ключевые слова: biotechnology, closeup, discovery, education, equipment, experiment, front side view, group of microscopes, group of objects, historic, inspect, instrument, investigation, isolated, lab, laboratory, lens, magnification, magnify, medical, medicine, metallic, microbiology, microscope, microscopic, microscopy, museum, objective, old, optical, optics, precision, research, retro, school, science, scientific, scientist, side view, technology, vaccine, vintage, virus,