A topic expression is defined in terms of expression type, fully qualified topic name, and prefix mapping.

主题表达式包含表达式类型、完全限定主题名称和前缀映射。

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A topic expression is defined in terms of expression type, fully qualified topic name, and prefix mapping.

主题表达式包含表达式类型、完全限定主题名称和前缀映射。

youdao