Methods: To compare the 147 cases of pregnancy-induced hypertension syndrome with 149 cases of non-pregnancy-induced hypertension syndrome according to the usual facts such as age, cultural level, place, frequency of pregnancy by adopting the method of descriptive study.

Through this trans_subject m ethod, the cultural levels.

In this paper,inspired by the philosophy of Karl Popper,the present author tries to provide translation studies with theoretical framework,which consists of translations in surface layer,in middle layer,in deep layer,and zero translation on the theoretical basis of the viewpoints of cultural layers and the theories of cultur.

Advance in Research of Tempering Secondary Hardening of Alloy Tool and Die Steel Fe-M-C Quenched Martensite;

Studing status on the secondary hardening phenomenon in ultra-high strength steels;

Influence of alloying elements on secondary hardening of hot work die steel;