Ruby on Rails is a Web application framework that USES the model-view-controller architectural pattern for organizing applications. It is built on two solid principles.
Ruby on Rails是Web应用程序框架，使用模型-视图-控制器体系结构模式来组织应用程序。
2
Thee wax pattern itself is made by duplicating using a stereo lithography or similar model-which has been fabricated using a computer solid model master.
石蜡型模本身能用立体制版或类似的模型复制—这可以采用计算机立体模型原版制作。
3
The background consists of a solid color, not a brush pattern.