human cognition
4.That therefore, that the vocabulary stretching righteousness moves mutually with the human being cognition world and human being with the world is to go hand in hand, is cognitive result of human being , it accepts the aspect effect such as society , economy , culture , science and technology, necessity being also that language develops.
10.As a principal part for natural space, human are the fundamental parts in spatial visibility analysis. The paper first discusses the human visual physical enginery, and furthermore analyzes conception and cognition in visibility analysis, as they are the root of the way that we conceive the geo-space.

