On the basis of a study of the Forecast of the international container Transportation, the writer chose to use the mode - buiding mechanism for expansion and collection forecast on domestic container transportation, builds an element mode for expansion and collection mechanism, and makes a forecast on domestic container shipping.

Aiming at thesituation that the load forecasting of power system mais have certain errors,double extension gather-type model and calculating way are put forward.

basing on extension theory and clustering analysis method,this paper discusses module partition of product theoretically and combines roving machine to divide it into different modules,the extension clustering analysis method for module partition of product is offered.

According to matter element and extension set theory,an extension elements model on coal and gas outburst proneness prediction was built,and an extension clustering method for the prediction was brought forward.

Research of the extension classification method and classification of flow units;

On the basis of the discussion about the extension classification,the hierarchy structure of the extension set is given.

According to extensible set theory,the definition of extension classification based on extension transformation is presented.