backup

noun

1. 增援；后援
   extra help or support that you can get if necessary
   1. The police had backup from the army.
      警方得到了军方的增援。
   2. 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。
   3. a backup power supply
      备用电源
2. （文件等的）备份
   a copy of a file, etc. that can be used if the original is lost or damaged
   1. Always make a backup of your work.
      每次都要对文件进行备份。
   2. a backup copy
      备份文件

1. N-VAR （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.
   1. There is no emergency back-up immediately available...
      手头无法获得应急支持。
   2. 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. N-VAR 备用品；后备计划
   If you have something such as a second piece of equipment or set of plans as backup, you have arranged for them to be available for use in case the first one does not work.
   1. Every part of the system has a backup...
      系统的每个部分都有备用元件。
   2. 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. Every part of the system has a backup
   系统的每个部分都有备用元件。
2. Do not use a bit-image method of backup ( like a tape streamer), because this will copy the virus.
   不要使用位元影像的方法（如磁带机）备份，因为这样会将病毒一起拷贝下来。
3. Clouds and rain in Florida forced NASA to land the shuttle at a backup landing site.
   弗罗里达连日的阴雨连绵不得不让国家航空和宇宙航行局启用这个备用降落场。
4. The offline policy controls backup and restore commands, and the encryption and decryption of database backup images.
   离线策略控制备份和恢复命令，以及数据库备份映像的加密和解密。
5. You also learned how backup and restore is carried out in DB2 and Informix.
   您还了解了如何在DB2和Informix中进行备份和恢复。
6. Be sure to backup the project directory to ensure that you have this output saved.
   确保备份项目目录，以保证您保存了此输出。
7. There are two modes of backup and recovery for both Oracle and DB2 UDB databases: offline and online.
   对于Oracle和DB2UDB数据库，有两种备份和恢复模式：脱机和联机。
8. Take a file system backup.
   进行一次文件系统备份。
9. This new feature provides a report of ON-Bar backup and restore performance.
   这项新特性提供了对ON-Bar备份和恢复性能的报告。
10. Backup and restore capabilities are key to ensuring data recoverability for any database management system.
    对于任何数据库管理系统来说，备份和恢复功能是确保数据可恢复性的关键。
11. CAI provides capabilities to backup and restore applications, and to manage composite application communities and support policies.
    CAI提供了备份和恢复应用程序的功能，以及管理复合应用程序社区和支持策略的功能。
12. The backup and restore enhancements improve performance and debugging.
    备份和恢复的改进提高了性能和调试效率。
13. Multiple instances can simultaneously backup to the same directory file system.
    多个实例可以同时备份到同一个目录文件系统。
14. At this page, both online and offline backup maintenance windows can be set.
    在这个页面上，可以设置在线和离线备份维护时间窗。
15. In this example, I excluded common backup files.
    在这个示例中，排除了常见的备份文件。
16. It delivers backup and delete instances described in a deployment file.
    它提供了在部署文件中描述的备份和删除实例。
17. You can also freeze file systems to support snapshots for file system backup.
    也可以冻结文件系统来支持文件系统备份的快照。
18. Most importantly, I performed a backup of the managed systems partition profile data, using the HMC.
    最重要的是，我使用HMC对管理的系统分区配置文件数据执行了备份。
19. To help you back up your site database, I recommend installing and enabling the Backup and Migrate module.
    为了帮助您备份站点数据库，我建议安装和启用Backup和Migrate模块。
20. If you set this preference, the Web Service wizard will not backup and overwrite the old skeleton bean.
    如果您设置了这个参数，这个WebServices向导将不会备份和重写旧的框架程序。
21. You can also use the brdb6brt tool to create a backup and generate the restore script in one step.
    还可以使用brdb6brt工具在一步中创建备份和生成恢复脚本。
22. Unlike offline backup, online backup only requires that data files and control files be backed up.
    与脱机备份不一样，联机备份只要求备份数据文件和控制文件。
23. To back up the filesystems and configuration files, refer to Filesystem/ File backup section command.
    为备份文件系统和配置文件，请参考文件系统/文件备份部分中的命令。
24. It also inherits open source tooling for management and backup.
    它还继承了用于管理和备份的开放源码工具。
25. Prior to migrating, we performed a backup of the system ( including a mksysb).
    在迁移之前，我们执行了系统的备份（包括一个mksysb）。
26. Oracle and DB2 UDB both have a set of components to make up the backup and recovery mechanism.
    Oracle和DB2UDB都有一组组成备份和恢复机制的组件。
27. You can also backup and restore from the command line.
    您还可以通过命令行进行备份和恢复。
28. Would create a backup for every file in the current directory.
    将为当前目录中每个文件创建一个备份。
29. ON-Bar now performs a backup and the restore of a whole system using parallel I/ O.
    ON-Bar使用并行I/O执行整个系统的备份和恢复。
30. You can use the ontape utility to backup and restore data from the file system without interactive prompts.
    可以使用ontape实用程序从文件系统中备份和恢复数据，而无需借助使用TAPEDEV和LTAPEDEV配置参数的交互式提示符。

noun

1. the act of providing approval and support
   1. his vigorous backing of the conservatives got him in trouble with progressives

   Synonym:    backingchampionshippatronage

2. (computer science) a copy of a file or directory on a separate storage device
   1. he made a backup in case the original was accidentally damaged or erased

   Synonym:    computer backup

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

   Synonym:    accompanimentmusical accompanimentsupport

4. someone who takes the place of another (as when things get dangerous or difficult)
   1. the star had a stand-in for dangerous scenes
   2. we need extra employees for summer fill-ins

   Synonym:    stand-insubstitutereliefrelieverbackup manfill-in

5. an accumulation caused by clogging or a stoppage
   1. a traffic backup on the main street
   2. he discovered a backup in the toilet