英语词汇equipment maintenance at three levels怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	equipment maintenance at three levels
释义	equipment maintenance at three levels 简明释义设备三级保养专业释义 1 新闻学与传播学设备三级保养
随便看	Activa activa addition activa agent activa amyl activa amyl alcohol activable activable tracer activable tracer technique activant activas activase activase activatable activate activate access activate as activate business activate button activate carbon activated activated 7 dehydrocholesterol activated 7-dehydrocholesterol activated-7-dehydrocholesterol Activated 7 dehydrocholesterol preparation Activated 7-dehydrocholesterol preparation

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。