The scheme is proposed for parameter selection scheduling system oriented to two grades of users based on the analysis for machining parameters selection and op
The principle of generating conjugate tooth profile for elliptic gear was studied.On this basis,3D modeling and parametrical design of elliptic gear were realiz
Discernibility matrix and discernibility function are two important tools to study information system.Simplification of the discernibility function are converte
In teaching practice,it is not as effective as expected while using traditional methods to instruct key points and difficulty concepts.It doubles the impression