No screen real estate is wasted to give you quick access to commonly used commands and activities and to control and modify your project and solutions.

屏幕上的每一块区域都可以让你快速访问到常用的命令，执行常用的操作以及对项目和解决方案的控制与修改。

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A mock is a "fake" object that allows you to focus on testing important features within the scope of the Rails project, rather than on interactions with external systems that you have no control over.

mock是一个“伪”对象，它让我们能够集中精力测试Rails项目范围内的重要特性，而不必关注与无法控制的外部系统的交互。

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Abstract: Design stage is a key link of project cost control, but there is no appropriate method which is advanced in theory and easy in operability.

摘要设计阶段是项目成本控制的关键环节，但该阶段成本控制缺乏理论先进、操作性强的方法。

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