UML today 6 also supports the four hierarchy types noted above: structural, behavioral, package, and inheritance.
今天，UML6还支持上面提到的四个分层类型：结构的、行为的、包，和继承。
It has a consistent class instantiation and inheritance structure and the ability of intercessive structural computational reflection, which enables it to support safe metaclass programming.
该语言具有协调一致的类对象结构，具备结构化计算反射能力，能够进行安全的元类程序设计。
It has a consistent class instantiation and inheritance structure and the ability of intercessive structural computational reflection, which enables it to support safe metaclass programming.
该语言具有协调一致的类对象结构，具备结构化计算反射能力，能够进行安全的元类程序设计。
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