位软件工程师开发软件，40位执行软件质量保障，10位负责运行并维护其生产环境。
One hundred of the software engineers develop software, 40 perform software quality assurance, and 10 are responsible for running and maintaining their production environment.
这里讨论的wiki服务器基于MediaWiki软件，为编写和维护文档存储库提供一个协作环境。
The wiki server discussed here is based on MediaWiki software and provides a collaborative environment for writing and maintaining a documentation repository.
Platform as a Service (PaaS)层提供了应用程序软件创建、部署和维护的环境。
The Platform as a Service (PaaS) level provides an environment for application software to be created, deployed, and maintained.
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