| 单词 | insulator |
| 释义 | insulator (once / 17881 pages) n Any material that keeps energy such as electricity, heat, or cold from easily transferring through is an insulator. Wood, plastic, rubber, and glass are good insulators. Swiss cheese... not so much. The idea of an insulator comes from the Latin idea of insulātus, which means "to make into an island." This gives rise to the idea of separation, which works for the idea of an insulator, which effectively blocks energy. If your house is built out of good insulators, you might enjoy an island of warmth inside it even in the dead of winter. WORD FAMILYinsulator: insulators+/insulate: insulated, insulates, insulating, insulation, insulator/insulation: insulations USAGE EXAMPLESMy mother offers the best example of the mall’s effectiveness as an insulator. The Guardian(Dec 14, 2016) They found few serious safety problems and instead highlighted one-off issues spotted on the tracks — loose fasteners, deteriorated wooden rail ties and decrepit third-rail insulators. Washington Post(Nov 16, 2016) In one instance, inspectors attempted to investigate an insulator explosion at Capitol South station — an incident that was recorded on video and widely circulated. Washington Post(Nov 12, 2016) n a material such as glass or porcelain with negligible electrical or thermal conductivity Syn|Ant|Hypo|Hyper dielectric, nonconductor conductor a substance that readily conducts e.g. electricity and heat bushing an insulating liner in an opening through which conductors pass mineral wool, rock woola light fibrous material used as an insulator glass woolglass fibers spun and massed into bundles resembling wool material, stuff the tangible substance that goes into the makeup of a physical object |
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