This paper firstly discusses three kinds of level in the fineness hierarchy of semantic roles, and introduces their application in some systems of natural language processing(NPL).
本文首先讨论语义角色的三种精细程度不一的分类层级，介绍它们各自在语言信息处理系统中的有关应用。
2
The logic synthesis of VHDL language is a method that the description of higher abstract hierarchy is shifted to lower one automatically.
VHDL语言的逻辑综合就是将较高抽象层次的描述自动转换到较低抽象层次描述的一种方法。
3
With enthusiasm sincere attitude, according to different parents age, cultural hierarchy and understanding ability and adopt different language expression way and the perspective-taking way, etc.