求翻译：用于描述基于UML的精确元模型定义。元模型为UML的所有元素在语法和语义上提供了简单、一致、通用的定义性说明,保证了开发者能在语义上获得一致的思想,去除了因人而异的最佳表达方法所造成的影响。此外UML还支持对元模型的扩展定义。是什么意思？

Used to describe the precise uml-based meta model defines. Element model for the uml of all elements in the syntax and semantics of a simple, consistent, universal definition instructions to ensure developers semantically consistent ideological addition to the optimal expression varies the impact. I

Used to describe the precise dollar UML-based model definition. For the meta model UML in all of the elements on syntax and semantics for a simple, consistent, and the definition of generic instructions to ensure that the developers are able to get on the semantics of a thinking, in addition to the

Uses in describing based on the UML precise Yuan model definition.A Yuan model was UML all elements has provided simply, consistent, the general definition explanation in the grammar and the semantics, had guaranteed the exploiter could obtain the consistent thought in the semantics, the influence w

Used to describe the precise definition meta model based on UML. Metamodel for UML on the syntax and semantics of all the elements to provide a simple, consistent, common definitions, notes, and ensures that developers could semantically consistent thought, remove the vary best method of expression

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