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Poster testglas - Seite 43
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Poster ein Student der Naturwissenschaften bei einem chemischen Experiment im Labor der Universität.
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Poster chloroform in bottle , chemical in the laboratory and industry, Chemical used in the analysis
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Poster gVO-Konzept. Wissenschaftler tropft etwas auf Buchweizenkörner am Tisch im Labor, Nahaufnahme
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