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 backup ['bækʌp]   添加此单词到默认生词本
n. 倒车, 后退, 后援, 支持, 阻塞

vt. 做备份

a. 候补的, 支持的

[计] 备份; DOS外部命令:通常使用于将硬磁盘上指定的文件复制到软盘上


  1. His backup parachute also failed.
    他的备用降落伞也坏了。
  2. e.g. Did you make up a backup copy?
    你做了备份了吗？
  3. We should always have a backup plan.
    我们应该总是有备用的计划。


backup
[ noun ]
  1. an accumulation caused by clogging or a stoppage

    2. <noun.process>
    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)

    3. <noun.person>
    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. <noun.communication>
  4. (computer science) a copy of a file or directory on a separate storage device

    5. <noun.artifact>
    he made a backup in case the original was accidentally damaged or erased
  5. the act of providing approval and support

    6. <noun.act>
    his vigorous backing of the conservatives got him in trouble with progressives


backup \back"up\, n.
1. anything kept in reserve to serve as a substitute in case
of failure or unavailability of the normal or primary
object; -- used for devices, plans, people, etc. Also used
attributively; as, there was no backup for the electrical
supply; a backup motor; a backup generator.
[PJC]

2. (Music) a musician or group of musicians accompanying a
soloist, whether vocalists or instrumentalists.

Syn: accompaniment. [PJC]

3. a person or group of persons serving as reinforcement for
another or others; as, the policeman called for backup
when he was fired on.
[PJC]

4. an accumulation, overflow, or reverse flow (in traffic or
a liquid flow system) caused by a stoppage or other
malfunction.
[PJC]

5. (Computers) A copy of a program or data from a computer
onto a data-storage medium, usually one that may be
removed to safe storage at a distance from the computer;
it is used to preserve data for use in the contingency
that the original data on the computer may be lost or
become unusable. A backup that is removed from the
building housing the computer system (to provide
protection against loss of data in a disastrous event such
as a fire) is called off-site backup. Also used
attributively; as, backup copy.
[PJC]

6. (Computers) The act or process of creating a backup[5];
as, they performed a full system backup every weekend.
[PJC]

  1. As a backup in case revenues fall short, however, some issuers pledge other taxes to repay the bonds; other issuers agree to allocate money from their budgets.
  2. The backup developed late Wednesday as drivers from eastern Germany returned home after a one-day holiday.
  3. They shut off the faulty dehumidifier, shifted to a backup, and then went to work on the water with towels and a hand-held vacuum, using a flashlight to dry cables and other surfaces.
  4. The backup plan calls for the issuance of shares of common and preferred stock in the reorganized company to pay off most general creditors.
  5. The fire disabled six cooling pumps for the Block I reactor at the plant, and five of six backup pumps were also inactivated, Spiegel said.
  6. Also on Wednesday, the Panama Canal was returning to normal gradually, and a spokeswoman said waterway officials hoped to go to 24-hour operation to clear a 125-ship backup as more personnel returned to work.
  7. With many of the regular Saudi Army troops deployed to the nation's northern border following Iraq's Aug. 2 invasion of Kuwait, military officials are looking to boost backup forces.
  8. A problem was reported when a heater on one of the shuttle's three auxiliary power units failed, but a backup heater was put into operation and was working fine, Mission Control said.
  9. One of the Magellan spacecraft's backup computers rejected commands when a memory chip failed, but the glitch won't hurt the $744 million exploration of Venus, engineers say.
  10. Mr. Springsteen recalls playing backup years ago for Mr. Berry, who likes his concerts to be one-night stands so he can travel light.
  11. International Medication responded by setting aside hundreds of thousands of dollars of backup inventory. "Since then, I've had no complaints," Mr. Soars says.
  12. More importantly, he said, "what we need to do is ensure a little more formalized backup just under him."
  13. In Boston, the granite veneer of the 28 State Street high rise had to be secured with bolts bored into the backup concrete because the granite panels were becoming loose.
  14. The EPA will not use its proposed backup system until 1996 at the earliest because of confidence in current efforts, said David Howekamp, chief of air and toxics for the agency.
  15. Two backup flying machines are ready for assembly here if needed.
  16. The wreck 30 miles north of Phoenix early Friday caused a 10-mile-long traffic backup on Interstate 17 while state police cordoned off the area to recover hundreds of live 20mm projectiles.
  17. Some are dividing key data-processing operations between two sites or building backup centers that could be used in case of emergency.
  18. "The prime motivation at the Fernald plant and other Department of Energy sites was production, and the environment either played no role at all in decisions, or at best a backup role," he said.
  19. In addition, they call for double supervision of S&Ls, with the FDIC serving as the backup supervisor for the industry, and for creation of a comprehensive vehicle called the Resolution Trust Corp. to handle insolvent S&Ls.
  20. Firms that worked on backup generators and at the offices of friendly competitors criticized the city's utility for not restoring power to the financial district more quickly.
  21. The second charge is a backup in case the defense contends there was an accidental element in Heather's death, he said.
  22. If there has been any change, Viralarm then blocks use of the altered program, notifies the user and suggests a backup copy of the program be substituted.
  23. The U.S. air traffic control system remains vulnerable to communication failures because of a lack of adequate backup systems, officials said.
  24. The military is even planning a backup center, in case Cheyenne Mountain were destroyed.
  25. He recommended giving Emery backup authority for a year to provide the service should UPS fail to do so.
  26. The Forest Service on Wednesday also began training the first of 350 backup firefighters from Oregon to relieve weary crews around the nation.
  27. He said it was expensive, for instance, to keep an anti-aircraft missile crew, with backup assistance, at a high level of readiness.
  28. But it could be premature for Mr. Davis to pursue AMR because he remains the backup bidder for UAL if a $6.79 billion offer by a fragile coalition of employees, management and British Airways PLC should falter.
  29. Companies generally try to collect overdue bills themselves, but the recession has caused so many delinquent accounts that many small businesses are calling backup assistance.
  30. "Will a skilled team of heart surgeons be waiting in case something goes wrong?" Surgical backup in the same hospital is considered mandatory.
backup
backup acquisition sy...
backup aid
backup aircraft
backup arrangement
backup battery
backup bit
backup breaker
backup browsers
backup buzzer
backup circuit
backup command
backup communication ...
backup computer
backup control data set
backup copy
backup dancer
backup data
backup data set
backup die
backup diskette
backup facility
backup file
backup flange
backup force
backup frequency
backup fuse
backup heel
backup interceptor co...
backup item
backup job
backup light
backup lining brick
backup memory
backup order
backup plate
Backup Plus
backup power indicator
backup procedure
backup processor
backup program
backup protection
backup protection equ...
backup radar
backup register
backup relay
backup ring
backup roll
backup roll extractor
backup satellite
backup server
backup service
backup shutdown
backup station
backup storage
backup store
backup system
backup system library
backup tape
backup trap
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