electronnote电子票据electronn.电子electronegative valency effect阴电原子价效应electron bombardment degassing电子轰击除气Electron momentum spectroscopy电子动量谱electron-beam wiring machine电子束布线机electron positron storage ring电子正电子储存环electron beam recording system电子束记录系统Electron-microprobe analyses电子探针Electrons- phonons mechanism超导体electron-resonance magnetron[电] 电子谐振磁控管electron-neutron interaction电子-中子相互作用