1. Hiberarchy, ubiety and orientation among features by naming features of part model and its shapes are described in detail in this way.

2. By the understanding of the layout, size, ubiety , registration requirements, Business card printing and membership card making pressure requirements, etc.

3. During the process of calculation, the relative ubiety between impactive location and stiffener is taken into account.

4. After relative ubiety of magnetic field data is distilled, two types of graded distribution are obtained by solid-shadow algorithm and directional filtering technique respectively.

5. In addition to the PS version at the time of exposure and film, we will also use a glass plate, covering, rubber membrane, figure ubiety as it is shown below.

6. According to these requirements, a method of deciding the ubiety and dimensions of two crystals based on the T-shaped exit fixed mechanism is put forward.