嵌入式的UI处理程序允许安装包制作者在分派安装包到标准UI处理程序之前，处理和过滤消息。

Embedded UI handlers allow package developers to still handle and filter messages before they are dispatched to the standard UI handler.

youdao

有些软件作者为他们的程序制作了Debian安装包，但并没有提供软件仓库以供apt下载之用。

Some software authors create Debian packages of their programs, but do not provide a repository for APT to fetch from.

youdao