elector-optics 電光學(xué)elector-ophthalmodynamomeder 電視網(wǎng)膜血管血壓計(jì)elector-oculography 眼電[流]描記法elector-oculograph 眼電[流]描記器elector (n.) elector n. 選舉人；有選舉權(quán)的人；總統(tǒng)選舉人electophoresis 電泳electone n. [輕] 電子琴electmphosphorescence 電致磷光electives n. 選修課，選修課程（elective復(fù)數(shù)形式）electiveness n.選出；選任electively adv.選舉地；可選地elective system n. 選課制度，選修制elective surgery 選擇性外科手術(shù)；非急需施行的手術(shù)elective subjects 選修科目（elective subject的復(fù)數(shù)）elective subject of study 選修科elective office 由選舉產(chǎn)生的職位elective mutism [心理學(xué)]拒言性elective music course [藝術(shù)學(xué)]公共音樂(lè)選修課程elective government 選舉政治