英语词汇backup extraction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	backup extraction
释义	backup — 奥援 extraction n — 开采 n • 提取 n • 采掘 n • 抽取 n • 萃取 n • 拔取 n • 脱牙 n extraction — 回采
随便看	built-in parts built-in patterns built in pdf viewer built in phases built-in-place built-in plastic film keyboard built-in player built in position built in power built-in pressure built-in pressure gauge built-in projector built-in protection built in pump built in quality built-in receiver built-in rechargeable built-in rechargeable battery built-in redundancy built-in refrigerator built-in relay built-in reporting built-in reverse built-in routines built-in safeguards

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。

backup —