An equivalent flow length method was used to predict the filling pattern and transferred the tracing of melt front to computing weighted approximate shortest flow path on finite element mesh model.

Based on practical examples in production,study was made on effects of various gate forms and location on the filling pattern of plastic melt in mould cavity,the internal mechanical and physical properties,and surface quality of the injection moulded products.

Mine-filling model based on industrial ecology;

Sequences stratigraphic framework and sequences filling models of Chaiwopu Sag,south Gunggar Basin

The author pointed out that interpretation of seismic section should be performed using sequence stratigraphy and techniques of balance section, under the guidance of structure styles and filling model, and the resulted interpretation then be converted into geology interpretation by using well and field geology data.

This paper introduces the mode of providing for the aged and its development trend in our country.

Then, based on analysis of the living mode of aged, the complex mode of providing for the aged by combining the family supporting with social supporting is presented.

Beginning with the discussion of the urgency of pension problem, the paper compares several pension models and analyses the pension model measuring up to our current conditions and the trend of social development.