| 1. | R1 the pitch circle radius of bolt
R1螺栓的节圆半径 |
| 2. | Equivalent pitch radius
当量节圆半径 |
| 3. | The linear velocity
节圆的线速率？ |
| 4. | Pbd pitch circle diameter
节圆直径 |
| 5. | Thickness on pitch circle
节圆齿厚 |
| 6. | Virtual pitch radius
当量节圆半径 |
| 7. | Pitch diameter , d
节圆直径， d |
| 8. | P . d . pitch diameter
节圆直径 |
| 9. | Pitch - line chuck
节圆夹具 |
| 10. | The stepped plate designed in this method can overcome the limitation of the sound field generated by circular flat
根据这一设计思想，设计了两个两节圆的阶梯圆板，经试验符合设计要求。 |
