Lab worker dripping reagent in lab flask with liquid. Unsuccessful lab experiment. Science experiment fail
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Female biologist making experiments with plants. Plants in test tube. Biology laboratory plants.
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Food laboratory research. Close up of lab worker hand doing laboratory testing. Lab worker doing laboratory analysis. Laboratory experiment with candle flame and liquid. Science research
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Lab scientist pouring liquid in lab flask. Close up of female scientist doing laboratory experiment. Lab worker hands doing laboratory testing with chemical liquid in beaker