類似のロイヤリティフリーの画像
Mature professional chemist or pharmacologist looking in microscope while studying new substances among his colleagues in laboratory
Scientists experiment with synthetic substances from nature to modify the genetics or DNA of plants to be resistant to disease, Lab experiments, Researchers scientist working analysis with test tube.
The photograph captures an experiment in a chemical laboratory to develop new drugs to treat cardiovascular disease. Scientist biologist conducting experiments with cells and tissues in a
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