| 1. | The horizontal anger has a variable pitch .
横向搅龙具有可变的螺距。 |
| 2. | Trapezoidal screw threads - part 2 : general plan
梯形螺纹第2部分：直径与螺距系列 |
| 3. | Steel connections with gas thread . double nipples
钢制气体螺距的连接管.双接头 |
| 4. | Nc milling - machine big size variable - pitch screw rod
数控车铣加工大尺寸变螺距丝杠 |
| 5. | Steel connections with gas thread . overall view
钢制气体螺距的连接管.全图 |
| 6. | General purpose metric screw threads - general plan
普通螺纹直径与螺距系列 |
| 7. | Equal screw pitch edge on spherical cone rotary mill
关于锥球头回转铣刀上的等螺距刃口 |
| 8. | On the toroidal columned milling cutter with equal screw pitch
关于柱状带角圆的等螺距铣刀 |
| 9. | Technical requirements for marine controllable pitch propellers
船用可调螺距螺旋浆技术条件 |
| 10. | Hexagon socket head cap screws with metric fine pitch thread
有米制细螺距螺纹的六角凹头螺钉 |
