| 1. | Sheet metal rim holes with screw thread ; prepunch hole diameters
带螺纹的金属薄板凸缘孔.预冲孔直径 |
| 2. | 3 jaws chuck hole diameter 16mm
三爪卡盘孔径： 16mm |
| 3. | Hole diameter drilling capacity
钻孔直径深度： |
| 4. | The thickness of a hole diameter
孔径部份的厚度 |
| 5. | Tapping screw connections ; guideline values for core hole diameters and use
自攻螺钉的连接.芯孔直径的参比值和用途 |
| 6. | Hole diameter enlargement rate
井径扩大率 |
| 7. | Thread rolling screws for iso metric thread ; guideline values for hole diameters
Iso米制螺纹用螺纹压制螺钉.孔直径的指导值 |
| 8. | Relief hole diameter
排料孔直径 |
| 9. | Gear ratio : 3 . 33 : 1 , 4 . 5 : 1 suit for : 130 180 motor different hole diameter for sun gear
适用电机： 130 180电机只是太阳轴孔不同，配后盖 |
| 10. | Research on upgrading quality of micro - holes diameter by using varyingfrequency vibration drilling
变频率振动钻削微孔提高孔径质量的研究 |
