| 1. | The failure study of the wormwheel working surface 冷轧工作辊辊面剥落的失效分析 |
| 2. | Accuracy of fine - pitch cylindrical worm and wormwheel 小模数圆柱蜗杆蜗轮精度 |
| 3. | Terminology and symbols for cylindrical worm and wormwheel 圆柱蜗杆蜗轮术语及代号 |
| 4. | Repairing auxiliary device of large modulus wormwheel rack 修复大模数蜗轮齿条辅助装置 |
| 5. | Type and parameters , dimensions for swl wormwheel screw hoists Swl蜗轮螺杆升降机.型式参数与尺寸 |
| 6. | Accuracy of cylindrical worm and wormwheel 圆柱蜗杆蜗轮精度 |
| 7. | Cylindrical worm and wormwheel information of the dimensional data to be given on the drawing 圆柱蜗杆蜗轮图样上应注明的尺寸数据 |