Orientated polycrystal, quasi-single crystal or single-crystal materials can be easily distinguished, and the crystal quality of quasi-single and orientated crystal materials in proc.

In this paper,tungsten bronze (TB)crystal structure is discussed,and application of molecule design in TB crystal materials research and its latest progress are explained.

This paper briefly reviews the history of past half century and recent progress of crystal growth and crystal materials in China.

By theoretical analysis and test research,this paper introduces the effect of tiny-hole laser machining parameters,such as energy of the laser pulse,width of the laser pulse,and repetition frequency of the laser pulse on the diameter and depth of the tiny hole for synthetic corundum material.

Objective To investigate the related factors,precautionary measures and the treatment of infection after artificial material implantation.

Objective To study in-vitro compatibility between artificial materials and tendon cells as well as the growth of the tendon cells on the artificial materials.

The BESO method based on artificial material is improved and the error of artificial material elements’ stress sensitivity number is limited within 5% in the thesis.