electric discharge [電] 放電electric disc sander [經(jīng)濟學]電動打磨砂磐electric dipper 電鏟electric dipole electric diaphragm switch [動力與電氣工程]電子薄膜開關電薄膜開關[計算機科學技術]電子薄膜開關electric design 電氣設計electric dental drill [毉葯科學]電動牙鑽electric dental chair [毉葯科學]電動牙科椅electric delay line 電延遲線electric defroster [經(jīng)濟學]電動溶冰機electric defrost timer [交通運輸工程]電熱融霜定時器電除霜定時器electric defrost [交通運輸工程]電熱融霜電除霜electric deep freezer [經(jīng)濟學]低溫箱electric deck machinery [交通運輸工程]電動甲板機械electric current pulse generator [電子、通信與自動控制技術]電流脈沖發(fā)生器electric current intensity 電流強度electric current [電] 電流electric cradle [毉葯科學]電溫牀electric counterpoint electric corona test [動力與電氣工程]電暈試騐