Open book with lightning bolt icon with shadow
Schlüsselwörter
lightning,
shield,
power,
energy,
voltage,
signs,
high,
danger,
flash,
security,
vector,
icon,
isolated,
set,
black,
red,
bolt,
book,
education,
literature,
library,
open,
symbol,
illustration,
textbook,
chemistry,
chemical,
molecular,
formula,
molecular,
structure,
science,
atom,
biology,
background,
scientific,
test,
flask,
beaker,
glasses,
laboratory,
glassware,
experiment,
medicals,
liquid,
plant,
nature,
flower
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