In accordance with the insulator material, there are porcelain, glass and composite insulators at present.
依绝缘子的材料分，目前有瓷、玻璃和有机复合绝缘子。
The record material is insulator material with smooth surface, which can produce etched latent trace when irradiated by incident ions.
记录材料为入射离子在其中能产生可蚀刻潜径迹的表面平整光洁的绝缘材料。
It can change between a superconductor a material that conducts electricity, and an insulator a material that doesn't conduct electricity
它可以在超导体（一种能导电的材料）和绝缘体（一种不导电的材料）之间转变。
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