不，WP7中没有GAC或等效功能.

No, there is no GAC or equivalent in WP7.

GAC用于共享版本化的程序集.在Windows Phone 7中，每个应用程序都与所有其他应用程序完全隔离，因此不需要程序集共享工具.

The GAC is used for sharing versioned assemblies. In Windows Phone 7, each application is completely isolated from all other applications, so there is no need for an assembly sharing facility.