The first and second lines generate a Rails project and switch to the new directory.
第一行和第二行代码生成一个Rails项目，并切换到新目录。
After IronRuby 1.0, the project will switch to 1.9 support which should then support Rails 3.
在IronRuby 1.0以后，项目将会切换到对1.9的支持上，这样IronRuby就能够支持Rails3。
The resulting code is a beautiful example of a tiny domain-specific language within Rails that extends Ruby to make a kind of switch statement. Here's how it works.
生成的代码是Rails中小型的特定于域的语句的优美示例，它扩展Ruby以构造一种switch语句。
With the speed increase this year, locomotive wobbling occurred frequently due to side abrasion of straight rails at switch point.
随着线路的再次提速，因固定型提速道岔转辙部位直股钢轨侧磨而多次引发机车摇晃。
A mechanical model and its calculation method are advanced for calculating the variation regularity of load on the rails of the close contact section between switch point and stock rail.
提出了求解道岔转辙器部分尖轨与基本轨密贴区域内轮载在两钢轨上分布规律的力学模型与计算方法。
A mechanical model and its calculation method are advanced for calculating the variation regularity of load on the rails of the close contact section between switch point and stock rail.
提出了求解道岔转辙器部分尖轨与基本轨密贴区域内轮载在两钢轨上分布规律的力学模型与计算方法。
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