cluster engine; engine block; engine unit; set of engines发动机: engine; motor组: group电动-发动机组: motor-generator set多发动机组: multiple engine assembly发动机组合: engine combination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:发动机组,即可在微信中查询翻译