| 1. | The pyramid had five terraces .
那角锥共有五层。 |
| 2. | Hexagon socket set screws , cone point . iso thread
内六角锥头止动螺钉. iso螺纹 |
| 3. | Interior six - angled conical - ended fixing screw
内六角锥端紧定螺钉 |
| 4. | Hexagon socket set screws with cone point
内六角锥端定位螺钉 |
| 5. | Hexagon socket set screws with cone point
内六角锥端紧定螺钉 |
| 6. | Hexagon countersunk headless cone plug
内六角锥形螺塞 |
| 7. | Analysis of reflection property of cube - corner retroreflector with vector expression
用矢量方法分析角锥棱镜的反射特性 |
| 8. | Vickers pyramid hardness
维氏角锥硬度 |
| 9. | Vickers pyramid number
维氏角锥硬度值 |
| 10. | The analyse of theary about effect on angular error for reflective characterisitic of move angular cone prism
角度误差影响运动角锥棱镜反射特性的理论分析 |
