insulator

/ˈɪn.s(j)ə.leɪ.tə(ɹ)/ 名词 C2

中文：绝缘体、绝缘子

A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image) · To isolate electrical wires from the pylons supporting them, one often uses glass insulators.
A person who installs insulation.

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