In this paper,the calculation methods of non steady flow and steady flow are used to make an analysis of the supplement and discharge correlation between the river water and groundwater in Jiamusi section of Songhua river on the basis of the observation data of surface water and groundwater and the hydrological features of the river in flood season and the frozen season.

Taking modification design for low-voltage reactive power compensation system of steel tubes 3PE antisepsis production line as example,the feasibility and validity of low-voltage reactive power compensation modification of low voltage electric network are presented,including the processes and technology details.

Research advances on the complement system of fish;

The differences of complement system between normal people and 9 female 400m runners were compared.

Pathology of HSP prompts that transmigration of WBC to the vessels involved,and the activation of complement system may play very important roles in the pathogenesis of the disease,and those aspects are also the focus in the recent years.