This paper proposes to apply finite element method to analyze main mode cutoff wavelength of asymmetrical ridge site double-ridge waveguide,and provides the field patterns under several special situations.

This paper describes the application of finite element method for obtaining the TE mode′s cutoff wavelength and the field pattern of symmetric quadruple-ridged rectangle waveguide.

Finite element method is used to analyze the transmission of multi-ridge waveguide,the cutoff wavelength of the dominant mode,bandwidth and field pattern of the typical model size of double ridge waveguides,triple ridge waveguides and quintupling ridge waveguides are obtained.

Digital simulation based on system structural drawing simulate;

Based on the Matlab/Simulink software, in allusion to diversion system characters that elements react each other, the structural drawing oriented simulation was applied to construction diversio.

The structural drawing-oriented simulation method is used to simulate and optimize the closure of a crotched river.

(Swales s) Genre Analysis theory is applied to examining the following three aspects of the abstract: schematic structure, tense & voice,syntactical and lexical features The paper addresses the conventionality of abstract so that the members in the discourse community may grasp and apply the mechanism of the abstract in their own writing.

Different communicative purposes and functions determined different schematic structures of different genres.

After the three teaching steps of genre analysis, comparative analysis and writing practice, students will get the cultural knowledge of the texts, gain the schematic structure and obtain the language strategies, so that they can thoroughly understand and correctly write various business English texts.