这种简单的分类形成了第一级结构，可以使用它理解和描述现有的内容。

This simple categorization gives the first level of structure that you can use to understand and describe what you have. Still, some required functions are missing from this diagram.

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同时，设计了通信层、接口层、模型层、特征描述层和路由描述层的体系结构，解决了特征级感知和感知通信的问题。

A system structure was designed as five tiers of communication tier, interface tier, model tier, feature description tier, and router description tier.

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逻辑综合的功能是对组合逻辑函数的描述进行转换和优化，生成与逻辑功能描述等价的优化的逻辑级纯结构描述。

Functions of logic synthesis are to transform and optimize the combinational logic functions and produce the pure logic level structural description.

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