RSA和EMF在应用程序开发周期中都有着特定的用途，目的就是使您能够容易的跨工具使用。
Both RSA and EMF have specific purposes in the application development lifecycle, purposes that you can easily use across each tool.
在单一环境中使用两种功能，该服务只能使用一次，因为它们都是为特定的用途设计的。
With both functions in a single environment, the service could be used only once, for the specific purpose it was designed for.
因为一般用途语言（如C#）不能告知你它的使用方法，用什么描述特定问题，缺乏对边界的定义，因为它可描述问题的范围实在是太宽广了。
That's because the general purpose language (like C#) does not tell you how to use it or what it should be used to describe, it has no bounds. The domain of things it can describe is so vast.
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