male teacher white lab coat with rubber gloves many laboratory tools shelves and table using pipette for drop |
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navigate by keyword : analysis analyzing asian bacteria biochemistry biology biotechnology chemical chemist chemistry classroom clinic coat colorful concentration concept development drop dropper education equipment examining experiment flask fluids glasses gloves investigation lab laboratory male man microbiology microscope observation occupation pipette professional professor research researcher rubber safety science scientific scientist shelves specimen student table teacher technician technology test tools tube university white working yellow |
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A male teacher in white lab coat with rubber gloves with many laboratory tools on shelves and table. Using pipette for drop chemical fluids in yellow chemical flask. Before chemistry classroom begin |
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