The key-parts revision module was constructed through the recombination means of the case revision in CBID(Case Based Industrial Design) system,and accordingly the function that computer aided NC machine tools shape design was realized.

Research on vulnerability of military aircraft critical components in overlap and secondary kill mode;

This model includes the description of aircraft targets,the damage field model of warheads,the meeting analysis model of aircraft and warhead,the analysis of critical components,the damage assessments of components,the damage tree of aircraft targets.

Research on the critical degree of vulnerability critical components of military aircraft;

Some technical features of the key components of H G -440/13.

The import key components becomes the important role for the sourcing management in the manufacturing field of the railway vehicles because of it\'s high percentage in the total cost, difficulties for managing and serious consequence when delivery and quality problem arises.

The 270° bending magnet system is a key component of this machine which is designed by using TRANSPOR-EM/PC code and POISSON code.

Using the definition of generalized transition probability and the rule with priority to repair the key component, the state transition probability of the system is derived.

Using the definition of generalized transition probability and a rule with priority to repair the key component,the state transition probability of the system is derived.

Virtual Design and Manufacture of the Key Parts of Large Size Press-Brake;