Sakallı öğretmen küçük öğrenci laboratuvar yapım denemede bakarak gülen - Stok Fotoğraf ve Görsel
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Professional researcher holding tablet in his hand and demonstrating his result to his trainee
A male doctor in a chemical laboratory holds a tablet in his hand with display, you can insert a picture or an image you want to write for an advertising company
Young woman scientist working in chemical laboratory and examining biochemistry lab sample. Science technology medicine research and development study concept.
A female doctor in a chemical laboratory holds a smartphone in his hand with display, you can insert a picture or an image you want to write for an advertising company
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