Schiefertafel mit der chemischen Formel von Alginsäure
Palabras clave
seaweed,
bacteries,
chemistry,
formula,
chalk,
chemical,
medicine,
cosmetic,
structure,
hand,
board,
text,
plate,
write,
blackboard,
blackboard,
drawing,
illustration,
drawn,
graphic,
signs,
technology,
chemical,
laboratory,
science,
symbol,
studying,
concept,
molecular,
connection,
atom,
handwriting,
slate
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