For instance, regarding defect tracking, the client wanted to use their own custom tool.

比如说，关于缺陷的跟踪，这个客户想要使用他们自定义的工具。

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The Rational ClearQuest tool is a customizable defect and change tracking system designed for software development.

Rational ClearQuest工具是一种可定制的缺陷，并变更为系统开发所设计的追踪系统。

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The IBM Rational ClearQuest tool can provide a very powerful and sophisticated change- and defect-tracking facility.

IBM Rational ClearQuest 工具提供非常强大且成熟的变更和缺陷跟踪工具。

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