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insulator
英/ˈɪnsuːlˌeɪtɐ/
美/ˈɪnsəˌɫeɪtɝ/
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01n.
绝缘体, 从事绝缘工作的工人
a material such as glass or porcelain with negligible electrical or thermal conductivity
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a material such as glass or porcelain with negligible electrical or thermal conductivity