Handwriting chemical element Niobium Nb with black pen, test tube and pipette
The Periodic table of elements. Handwriting chemical element Niobium Nb with black pen, test tube and pipette. Close-up
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Keywords:
atomatomicblackchemicalchemistryeducationelectronelementhandwritingmassmendeleevmetalniobiumnobodynotebooknumberpaperpenperiodicpipettesciencesignsolidstudyingsymboltabletesttexttransitiontubeweightwhitewordwriting
Username: Ekaterina79
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Image ID: 145494271