Web caching servers expand on this model, putting a depot for frequently visited sites between an user's server and the Internet.

网站缓存服务器在此模型上进行了扩展，在用户的服务器与因特网之间设置了一个经常访问的网站的储存点。

youdao

Routers, caching proxies (including the caching in your browsers), and Web servers are optimized to deliver optimal Web content.

为传递最佳 Web 内容，路由器、缓存代理（包括浏览器中的缓存）和 Web 服务器经过优化。

youdao

It's a distributed memory caching system which Facebook (and a ton of other sites) use as a caching layer between the web servers and MySQL servers (since database access is relatively slow).

它是一个分布式的内存缓存系统，Facebook(包含其他很多网站)用它作为Web服务器和MySQL服务器之间的缓存层(因为数据库访问相对比较慢)。

youdao