Also, a weakened magnet regains its previous magnetic field when the north and south poles of another magnet are aligned to the north and south poles of the weakened magnet.
(a weakened magnet; regains; its previous magnetic field; T:when the north and south poles of another magnet are aligned to the north and south poles of the weakened magnet) (the north and south poles of another magnet; are aligned; to the north and south poles of the weakened magnet)
a weakened magnet the north and south poles of another magnet
regains are aligned
its previous magnetic field T:when the north and south poles of another magnet are aligned to the north and south poles of the weakened magnet
to the north and south poles of the weakened magnet