Chapter 7 covers advanced concepts related to addressing, reliable messaging, metadata exchange, security, and more.
第7章介绍寻址、可靠通讯、元数据交换、安全等其它相关高级概念。
Resource Description Framework (RDF) is a modeling system with some facilities for addressing just such metadata exchange.
“资源描述框架”（Resource Description Framework（RDF））是一个建模系统，该系统具有解决这种元数据交换的一些功能。
Resource Description Framework (RDF) is a modeling system with some facilities for addressing just such metadata exchange.
“资源描述框架”（Resource Description Framework（RDF））是一个建模系统，该系统具有解决这种元数据交换的一些功能。
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