- n. 后补物，替代物，备用物；支持；阻塞；【计算机】备份。
2.adj. 后补的，副(手)的，替代的，备用的；支持性的；伴奏的(a back pilot 副领航员，助航员)。
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backup中文什么意思
[ 'bækˌʌp ] 发音: 用"backup"造句
例句与用法
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- Types of differential backups full recovery model
>差异备份类型（完整恢复模式） - Restores backups taken using the backup command
还原使用backup命令所做的备份。 - Rman will backup all changes since thursday
Rman将备份星期四以后做的所有更改。 - Name of the user who performed the backup operation
执行备份操作的用户的名称。 - Restoring full and differential database backups
B .还原完整数据库备份和差异备份
英文释义
名词- the act of providing approval and support; "his vigorous backing of the conservatives got him in trouble with progressives"
同义词：backing, championship, patronage - (computer science) a copy of a file or directory on a separate storage device; "he made a backup in case the original was accidentally damaged or erased"
同义词：computer backup - a musical part (vocal or instrumental) that supports or provides background for other musical parts
同义词：accompaniment, musical accompaniment, support - someone who takes the place of another (as when things get dangerous or difficult); "the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins"
同义词：stand-in, substitute, relief, reliever, backup man, fill-in - an accumulation caused by clogging or a stoppage; "a traffic backup on the main street"; "he discovered a backup in the toilet"
百科释义
In information technology, a backup, or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event. The verb form is to back up in two words, whereas the noun is backup.
详细百科解释