Επιστήμονας προσθήκη δυνητικά επικίνδυνη ουσία στο σωλήνα, εξετάζοντας τις ιδιότητες - Πλάνα & Βίντεο Αρχείου

Chemist pouring biohazardous liquid in test substance, dangerous experiment

Hand in protective gloves pouring irritant substance in test-tube, chemical lab

Researcher pouring inflammable liquid in test-tube, analyzing petrol properties

Researcher dripping chemical liquid into tube, analyzing substance properties

Scientist putting radioactive liquid in tube rack, weapons of mass destruction

Chemist pouring biohazardous liquid in test substance, dangerous experiment

Hand in protective gloves pouring irritant substance in test-tube, chemical lab

Researcher pouring inflammable liquid in test-tube, analyzing petrol properties

Researcher dripping chemical liquid into tube, analyzing substance properties

Scientist putting radioactive liquid in tube rack, weapons of mass destruction

Chemist pouring liquid bubbling substance in test tube, secret laboratory