The standard pipe rack configuration for this drill consists of a long pipe cradle that is fastened to a pair of parallelogram- type swing arms.

本钻机的标准管架配置由一个长管道托架组成，该托架被固定在两个平行四边形的旋臂上。

youdao

Config.ru, found in the root of each Rails 3 application, is a so-called rackup file, or a configuration for a Rack-based application.

存在于每个Rails 3应用程序的根目录下，即所谓的rackup文件，也就是基于rack的应用程序的配置文件。

youdao

Open Rack is another Open Compute Project configuration.

FORBES: Open Source Storage Changes Industry Cost Structure

This configuration is compatible with an Open Rack system to provide an off the shelf SAS expander.

FORBES: Open Source Storage Changes Industry Cost Structure