The affair of the dilemma that Gadamer himself once changed the manner on the Chinese translating about Warheit and method disclosed not only the dilemma of translation,but also a reply in esotericism about the possibility of translation on methodology.

According to this traits , we made carbon clust er-like microwave stealth material .

Analyzing the development degree of rock pores and microfissures as well as the rock hydraulic properties,the variance rules of rock acoustic velocity under the action of water are explained.