| 1 | Creating principal three views and sectional views. | |
| 2 | Figure 1 that the three screw pump cutaway view. | |
| 3 | If the cutting position is obvious, it needn't be signed. | |
| 4 | The top and cross-sectional views of the memory structure are shown below. | |
| 5 | It is believed that the volume-based approach is better suited to handle different types of sectional views. |