Encara no tenim significats per a "insulated copper".
1The magnetic iron ore was surrounded by a coil of insulated copper wire.
2I had ten or twelve thousand feet of high-priced, insulated copper wire, and a dozen or more telephone sets, in the store-room.
3The current is conveyed under the gaps by means of an insulated copper cable carried in wrought-iron pipes, placed at a depth of 18 inches.
414 insulated copper wire wound on an iron core, as shown in Fig.
510 B. W. G. insulated copper wire, disposed in six layers.
66 insulated copper wire, after scraping off the insulation for an inch or two at each end.
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