单词	electret
释义	electret noun elec·​tret i-ˈlek-trət  -ˌtret : a dielectric body in which a permanent state of electric polarization has been set up Example Sentences Recent Examples on the Web The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 The National Inventors Hall of Fame inductee, who lives in Fells Point, got his start at Bell Laboratories in Murray Hill, N.J., where he and his then-business partner, Gerhard M. Sessler, created and patented the foil-electret microphone in 1962. Brittany Britto, ajc, 28 May 2018 See More Word History Etymology electricity + magnet First Known Use 1885, in the meaning defined above
随便看	adaptogenic adaptor adaptors adapts Adar Adar Rishon Adar Sheni adars adas adat adatom adaw adawlut adaxial adays adazzle ADC add add (to) add (up) add insult to injury add to add to that add to this add to this/that

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