如果在企业数据中心环境中开发软件，那么这两种类型都能使用，而且使用 EC2 临时扩展资源的成本也很低 — 比方说测试。
You can use both types to develop software within the environment of the corporate data center, and, with EC2, temporarily extend resources at low cost—say for testing purposes.
您可以使用这种类型的分支，以修补产品公布版本的一些漏洞，同时协同工作以开发软件的下一个版本。
You can use this kind of branching to fix some bugs in the released version of the product, while working in parallel with the development of the next release of the software.
有些是普遍性的，适用于任何类型的编程语言或者您所开发软件的问题领域。
Some are universal and apply to any type of programming language or problem domain for which you are developing software.
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