Using a feature in an update site provides documentation, such as license agreements, and more importantly, allows for digital signing to verify that a plug-in is legitimate.

使用更新站点中的特性会提供文档，比如许可协议，而更为重要的是，允许进行数字签名以验证插件是合法的。

youdao

A package file is similar to a product file but is used to install the culture-dependent components of a dependency, such as localized assemblies, license agreements, and documentation.

包文件类似于产品文件，但是用来安装依赖项的区域性相关组件，如本地化程序集、许可协议和文档。

youdao

Compaq, HP, and IBM have inked partnership agreements with all the major distributions, but managing multiple documentation sets, utilities, and installation packages for essentially the same operating system kernel may weed out some distributions over time.

CNN: The big business of Linux