Web服务提供了一种方法描述和发布通用的、经过商定的接口,通过WSDL (Web Services Description Language, Web服务描述语言)标记访问数据和应用程序。
Web Services provide a way of describing and publishing a general purpose and agreed interface for accessing data and applications, through the WSDL (Web Services Description Language) notation.
顺序是这样的,当RAM很昂贵时SGML(Standard Generalized Markup Language 标准通用标记语言)出现了,因为文件总是比物理RAM存储器大很多,所以它必需是流处理方式:内存中处理的价格高的惊人。
Here is the sequence: SGML comes out when RAM is expensive, and it must be stream processed since documents are so much bigger than physical RAM: in-memory implementations are prohibitive.
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