Based on ultrasonic dispersion technique, poly lactic acid(PLA)/bone dust hybrid material was prepared by solution mixing method,and the relative result products were characterized by DSC,FT-IR and SEM.

It is also pointed out that in order to adopt ultrasonic technology to the practical project of water treatment, we have to develop as soon as possible the basic research and application technology on the sono-chemistry reactor which is to be highly effective and will large volume on continuou.

Conclusion Ultrasonic technology can improve extraction rate of oil in Ligustrum lucidum ait.

ConclusionExtract polysaccharides by Ultrasonic method,Ultrasonic technology is a good method for polysaccharides of Rheum wittrochii L.

Clinic study of removal of intracanal foreign matter with ultrasonic technique;

SiO_2 was grafted with four kinds of ionic liquids by means of ultrasonic technique under mild conditions and then used as catalysts for probe reaction of propylene glycol methyl ether synthesis from methanol and propylene oxide.

It also introduced the current research of several sonochemical reactors for water treatment,and the present status of application study of ultrasonic technique in water treatment.

Ultrasound technique was applied to detect liver echo, size and echo of tumor,generation and changing of blood vessels in tumor and to find out the characters of the rabbit VX2 carcinoma.