electorn.有选举权的人；选举人electornic-writing电子书写elector-oculograph眼电[流]描记器elector-rich state选民众多的州elector-oculography眼电[流]描记法elector's certificate[法] 选民证elector rs certificate选民证Electorcardiograph monitor心电监护elector-hydraulic system电液系统electorosurgical generator高频电刀electorn scanning micrograph扫描电子显微(镜)照片