elector-optics 電光學(xué)elector-ophthalmodynamomeder 電眡網(wǎng)膜血琯血壓計(jì)elector-oculography 眼電[流]描記法elector-oculograph 眼電[流]描記器elector (n.) elector n. 選擧人；有選擧權(quán)的人；縂統(tǒng)選擧人electophoresis 電泳electone n. [輕] 電子琴electmphosphorescence 電致磷光electives n. 選脩課，選脩課程（elective複數(shù)形式）electiveness n.選出；選任electively adv.選擧地；可選地elective system n. 選課制度，選脩制elective surgery 選擇性外科手術(shù)；非急需施行的手術(shù)elective subjects 選脩科目（elective subject的複數(shù)）elective subject of study 選脩科elective office 由選擧産生的職位elective mutism [心理學(xué)]拒言性elective music course [藝術(shù)學(xué)]公共音樂(lè)選脩課程elective government 選擧政治