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Hand of professional biology scientist young woman wear blue glove holding pipette with drop of orange liquid over test on glassware while experiment test in laboratory.
Laboratory assistants are investigating chemical reactions, medical scientists, chemical researchers, chemical experiments and disease testing from patient blood samples. Medicine and research concept
Scientists hold a glass tube filled with blue chemical liquid for research and analysis in a laboratory.
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Scientist adding blue liquid in tube with yellow oily substance, biofuel testing
Researcher conducting scientific studies to confirm the quality of cosmetics
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