Various projects have already been started to migrate from an existing issue tracker to GitHub, for example Lighthouse and trac.
众多项目都已经开始准备从其它的问题跟踪器迁移到Github上来了，例如Lighthouse和Trac。
According to its Web page, "trac is an enhanced wiki and issue tracking system for software development projects," but it works equally well for administration requests.
Trac的网页指出，“Trac是一个用于软件开发项目的wiki和问题跟踪系统”，但是它同样适用于跟踪管理请求。
Based on the general formula for the stability analysis of common jointless trac ks, the calculation method for the stability of switches of a jointless turnout is put forward.
基于普通无缝线路稳定性分析的统一公式，探讨了无缝道岔转辙器稳定性的计算方法。
To obtain psycopg2, use its Trac home page.
要获得psycopg2，可借助其Trac主页。
Trac is a Web-based software project-management tool that includes a wiki for managing project documentation and notes (see Resources for a link).
Trac是一个基于Web的软件项目管理工具，其中包括一个用于管理项目文档和笔记的wiki(请参阅参考资料)。
Most importantly, we continued to grow the development community to 1,528 people active on Trac and 13 committers, both numbers the highest in the history of WordPress.
最重要的是，我们的开发社区还在继续成长，活跃在Trac上的人有一千五百二十八个，还有13个提交者，这两个数字是WordPress历史上的最高纪录。
Further, use a database or a system such as Trac or Lighthouse (see Resources for links) to follow the life cycle of a configuration change-from request to implementation to expiration.
另外，可以使用数据库或者Trac和Lighthouse等系统(见参考资料中的链接)在配置的整个生命周期内(从请求实现直至取消)跟踪对配置的修改。
Further, use a database or a system such as Trac or Lighthouse (see Resources for links) to follow the life cycle of a configuration change-from request to implementation to expiration.
另外，可以使用数据库或者Trac和Lighthouse等系统(见参考资料中的链接)在配置的整个生命周期内(从请求实现直至取消)跟踪对配置的修改。
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