phase monitoring relay相位: phase position; phase监控: supervisory control; monitor ...继电器: electric relay; relay监控继电器: supervisory control relay; supervisory relay磁控继电器: magnetic control relay; magneticcontrol relay下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:相位监控继电器，即可在微信中查询翻译
