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start learning

Question		Answer
prąd zmienny start learning		alternating current
soczewki kontaktowe start learning		contact lenses
proch (strzelniczy) start learning		gunpowder
silnik spalinowy start learning		the internal combustion engine
silnik odrzutowy start learning		the jet engine
układ scalony / mikrochip start learning		the microchip
prasa drukarska start learning		the printing press
maszyna parowa start learning		the steam engine
koło start learning		the wheel

Nauka i Technika - Inventions