emergency setidle unitreserve setspare setspare tillerstand-by plantstandbyunit备用: reserve; spare; alternate; b ...机组: set; assembling unit; machin ...备用机组, 辅助设备: stand-by plant备用机组传动装置: drive system for备用机: guard machine; guest machine; reserve machine; spare machine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:备用机组，即可在微信中查询翻译
