Schiefertafel mit der chemischen Formel von Ractopamin
Palabras clave
medicine,
chemistry,
formula,
pig,
breeding,
meat,
forbidden,
chalk,
chemical,
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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