This study used literature review, expert visits and logical analysis method, three aspects of modern Hunan from the third group of sports professionals a comprehensive view and analysis revealed.

The results indicate that this method not only can match completely group velocities among three waves, but also can achieve maximal parametric bandwidth for continuous tunable femtosecond BBO OPA.

In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.