相序电驿

【电】 phase-sequence relay

相的英语翻译：

each other; mutually; appearance; looks; look at and appraise; photograph
posture
【化】 phase
【医】 phase

序的英语翻译：

foreword; initial; order; preface; prolegomenon; sequence

电的英语翻译：

electricity
【计】 telewriting
【化】 electricity
【医】 Elec.; electricity; electro-; galvano-