duplication

英 [ˌdjuːplɪˈkeɪʃn]

美 [ˌduːplɪˈkeɪʃn]

n. (不必要的)重复

BNC.12011 / COCA.16647

柯林斯词典

N-UNCOUNT (不必要的)重复
If you say that there has beenduplicationof something, you mean that someone has done a task unnecessarily because it has already been done before.
1. ...unnecessary duplication of resources.
  不必要的资源重复

noun

the act of copying or making a duplicate (or duplicates) of something
1. this kind of duplication is wasteful
Synonym:gemination
a copy that corresponds to an original exactly
1. he made a duplicate for the files
Synonym:duplicate

You can avoid unnecessary duplication of style information by sharing.
对象可以避免不必要地重复样式信息。
Try to avoid wasteful duplication of effort.
尽量避免无用的重复劳动。
Two aspects of DRY violations in code copy-and-paste coding and structural duplication can affect design.
代码中有两处违背了DRY原则&复制和粘帖代码以及结构化复制，这将对设计产生影响。
You should verify if data duplication exists and how this can be resolved during data matching and aggregation.
应该检查是否存在重复的数据，研究在数据匹配和聚合期间如何解决重复的数据。
Unauthorized duplication is forbidden.
未经授权，不得翻录。
The present technical development might let us transcribe and the duplication sound as necessary.
现在的科技发展可以让我们随时录制和复制声音了。
D. Combining orders reduces paperwork and duplication of effort.
将定单组合起来，减少了文书工作和重复努力。
What if you want to keep all the database queries in one place, to avoid code duplication?
如果你想保存在一个地方所有的数据库查询，以避免代码重复？
The new Bean Validation specification ( JSR303) makes validation simpler and reduces the duplication and errors.
新的Bean验证规范（JSR303）让验证更为简单，并减少了重复和错误。
It avoids these problems of duplication and fission.
它能避免复制和分裂的问题么。