Designing measured experiment about the subsurface damage during finishing for optics,using atomic force microscope (AFM) measure the depth of subsurface cracks (SSD) through traditional finishing and magnetorbeological finishing (MRF),comparing the two results and verifying the ability of MRF on controlling SSD.

The drive and polishing systems were improved for scallop shell polishing equipment.

The system consists of an ABB robot with six degrees of freedom and cloth polishing system.

It proves to be an important innovation to replace the traditional riprap spur dike with the pile spur dike in the areas of strong tidal area of Qiantang River,but the construction is facing the worst natural conditions and the lack of technical experience in dealing with.

During the process of the revolutionary struggle,the Chinese Workers and Peasants Red Army has formatted a series of glorious tradition,such as people war,absolute leadership of party,diverse strategies and tactics,democratic system in army,and excellent working styles such as serving for the people,fighting bravely,arduous struggle,diligent and thrifty and so on.