前缀完全是一种语法上的便利，一般而言实际上并不属于XML语言设计中的问题，仅仅是作者或者工具偏好的问题。
The prefix is strictly a syntactic convenience; in general, it is not really a matter of XML language design but rather a matter of author or tool preference.
它还承诺为语言老师提供得心应手的工具：作者不得不要解释许多很难翻译的词语，比如laicite and东方政策。
It also promises to be a handy tool for language teachers: the authors have had to explain many expressions that are hard to translate, such as laicite and Ostpolitik.
本文详细论述了作者在可视化过程建模语言、开发过程、设计方法的理论研究、工具开发及技术应用方面的工作。
This dissertation describes the author's theory research in Visual procedure modeling language, development process and design method, and tools developing and technical application work in detail.
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