英语词汇hvac maintenance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	hvac maintenance
释义	maintenance n — 保持 n • 维持 n • 赡养费 n • 定期维修 n
随便看	central research Department central research Institute central reservation Central Reserve central resource central restaurant central retail central review Central review central Rhine central Ridge central-right central ring central role for central role in defining central role within the central room of a traditional Chinese House Central room of a Traditional Chinese house central route central s120 system Central Saint Martins central sales tax central scanning central scenario central scheduling

英汉双解词典包含2273206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。

maintenance n —