Noun:

1. an accumulation caused by clogging or a stoppage;

   "a traffic backup on the main street"
   "he discovered a backup in the toilet"
   

2. 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"
   

3. a musical part (vocal or instrumental) that supports or provides background for other musical parts

4. (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"
   

5. the act of providing approval and support;

   "his vigorous backing of the conservatives got him in trouble with progressives"
   

1.（物资、人员等的）支持，辅助
backup consists of extra equipment, resources, or people that you can get help or support from if necessary.

e.g. There is no emergency back-up immediately available...
手头无法获得应急支持。
e.g. Alternative treatments can provide a useful back-up to conventional treatment.
替代疗法能为传统的治疗提供有效的辅助。

2.备用品；后备计划
If you have something such as a second piece of equipment or set of plans asbackup, you have arranged for them to be available for use in case the first one does not work.

e.g. Every part of the system has abackup...
系统的每个部分都有备用元件。
e.g. Computer users should make regular back-up copies of their work.
计算机使用者应该定期对自己的工作进行备份。

1. 备分：接下来,还要再处理的包括同步两台电脑的某些数据,备分(backup)一些重要的档案. 需要处理的文章、资料都全部拷贝进平时主要使用的电脑里面了. 目前的处理速度还不够快,不能只顾着分类,往往犯的错误是只顾得分类,分类完后人也累了,

2. backup的反义词

2. 备存：BAC,回车;进入备存(backup)程序. 备存[DB]...?DB,回车;指示系统备存数据库. 此时有三个选项:DB(数据库),MIS(杂项文文件)与ACD(ACD统计),本例选择了备存数据库. 备存的数据库...?A,回车;输入备存数据库名称A.

3. 备份文件：VOB文件--视频目标文件(Video OBjects)BUP文件 - 备份文件(backup)这种问题我以前碰到过,经过我慢慢试验与分析,发现这是由是某个文件夹的权限所导致的,iis在访问access数据库的时候,需要某个文件夹具有读写的权限,否则就出错.

a backup power supply

备用电源

Always make a backup of your work.

每次都要对文件进行备份。

a backup copy

备份文件

The police had backup from the army.

警方得到了军方的增援。

We can use him as a backup if one of the other players drops out.

如果有参赛者退出，我们可以用他作为替补。

There is no emergency back-up immediately available...

手头无法获得应急支持。

Alternative treatments can provide a useful back-up to conventional treatment.

替代疗法能为传统的治疗提供有效的辅助。

Every part of the system has a backup...

系统的每个部分都有备用元件。

Computer users should make regular back-up copies of their work.

计算机使用者应该定期对自己的工作进行备份。

We had no computer backup and had to rely on old paper files to reconstruct the records.

我们没有计算机备份,只得靠落后的纸档案重做记录.

Our troops cut the enemy's backup supplies from behind their back.

我军从后方斩断了敌人的后勤供给线.

Mr. Henderson said the company doesn't have a solid backup plan for its European operation.

汉德森说,通用汽车对欧洲业务并没有明确的支持计划.

File backup means make a ( copy ) of file.

备份指准备档案的 ( 副本 ).

Your primary guitar doesn't mind if you keep another for a backup.

你的正选吉他不介意你拥有备用的.

Create a subdirectory for each database, to store the backup files.

为每个数据库创建子目录以便存储备份文件.

Make sure your data is backed up by selecting backup Now from the backup preference.

通过在备份选单中选择‘现在备份’,确认你已经备份了数据.

It's common to back up through a network to a dedicated backup server.

经过一个网络向后倒车是通常的对一个热衷的预备服务器.

There is such a heavyweight a backup , Domenech can be a lot of peace of mind.

有这样一位重量级人物作为后盾,多梅内克可以安心不少.

Users can to RESTORE the backup data to the remote MySQL database server.

用户可以恢复备份数据到远程的MySQL数据库服务器.

The disaster recovery backup methods and backup mechanism analyzed in detail from the aspect of technique.

从技术角度对软交换的容灾备份方式、备份机制作了较详细的分析.

The backup Javascript configuration file was absent or had errors.

以前备份的javascript配置文件不存在或有错误.

Historical data has been damaged, this integrated platform backup and recovery system.

历史资料被损坏时, 这个综合的平台具有备份和恢复系统.

The backup files can only be restored to the same version of ValuNet Deluxe.

备份档案只可回复于同一版本的万利[叻]特级报关软件上.

Payment shall be made after Installation of power facilities including backup power supply.

电力设施包括备用电源安装完成后才可付款.