Assertion: tourmaline's electrode | /r/HasProperty | permanent
Facets:
Source sentences:
text: Insofar as the conventional term "electret" corresponds to a magnet, tourmaline should be called a permanent electret, considering that it has permanent electrodes.
text: Insofar as the conventional term "electret" corresponds to a magnet, tourmaline should be called a permanent electret, considering that it has permanent electrodes.
text: Insofar as the conventional term "electret" corresponds to a magnet, tourmaline should be called a permanent electret, considering that it has permanent electrodes.