In this program, a simple table of file extensions map into the MIME types that browsers need to know to properly handle the file's content.

在这个程序中，要正确处理文件的内容，浏览器需要知道文件扩展名与MIME类型之间的一个简单的映射表。

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Instead of relying upon a configuration file to map requests to actions, it discovers the appropriate action based on the URL requested.

它没有依赖配置文件把请求映射到某一个动作，而是根据请求的URL发现适当的动作。

youdao

This will create an association between a section of the file based on the size and the map name, this is how both processes will access the file.

这会把映射名称和基于文件大小的区域链接起来。如此多个进程间就知道如何访问文件了。

youdao

The file provided by the offshore reinsurance company had photos of the buildings and a map showing the layout of the campus.

FORBES: Broughton -- Rented Assets And Bogus Offshore Insurance Companies