Close up hands of a scientist in the laboratory measuring pH of the soil sample by electronic pH meter.
Scientist hand holding a Test tubes,Laboratory research.
Scientist or medical in lab coat holding dropper with reagent, mixing reagents in glass flask, glassware containing chemical liquid, laboratory research and testing of Microscope.
Scientist wear lab coat and protective wear are working with research or doing investigations with test tubes in experiment, Laboratory and development concept.
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