| 词汇 | insulator |
| 释义 | insulator/ˈɪnsjuleɪtə(r) ||; ˈɪnsəˌletɚ/noun [c] a material or device used to prevent heat, electricity or sound from escaping from sth 绝热体;绝缘体;隔音物 ☞picture at bulb 见bulb插图 |
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