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1. Oxford Dictionary

   electret

   • IPA[ɪˈlɛktrɪt]

   英式

   • n.
     a permanently polarized piece of dielectric material, analogous to a permanent magnet.

   • noun: electret, plural noun: electrets

2. • 更多解釋

   electret

   • IPA[əˈlektrət]

   美式

   • n.
     a permanently polarized piece of dielectric material, analogous to a permanent magnet.

   Oxford American Dictionary