1. The numerical results showed that dentiform element had strong diffluent and distributivity-mixed ability, but its dispersity mixing ability was weak.

2. For increases rubber dentiform bring 's intension and service life, Our factory increase wrap cloth on original basis, Can many use about in a.

3. Optimize the shape of dentiform using CVM as the optimize algorithm. The result were satisfied.

4. Via replacing different dentiform milling flake and adjusting strike technics, It will be suited for various requirements of striking pulp.

5. Because of the flexibility of enveloping method than dentiform normal method, three new screws are designed by enveloping method with flow field analysis.

6. Dentiform belt wear and down sides of the belt gap is too large or not.

7. The wheels of the single side are same velocity through the synchronized dentiform belt.

8. Design of a new special equipment for measuring worm dentiform thickness measurement which used in the process of precision worm manufacturing is introduced .

9. Mathematic models of conjugate curves were deduced via enveloping theory and dentiform normal method.

10. The bed surface is divided to back board and seat board. The dentiform bar lifting framework is operated by hand wheel. Back board can be fold up and down to suit various body positions.