| 1. | Design of the profile of shaper cutter for variable ratio gear 加工变传动比齿轮用插齿刀齿形设计 |
| 2. | Steering gear angle ratio characteristic 转向器角传动比特性 |
| 3. | Steering linkage angle ratio 转向传动机构角传动比 |
| 4. | Transmission ratio of mechanism 机构的传动比 |
| 5. | Steering system angle ratio 转向系角传动比 |
| 6. | Steering gear angle ratio 转向器角传动比 |
| 7. | Constant ratio steering 恒定转向传动比 |
| 8. | Variable ratio steering 可变转向传动比 |
| 9. | Optimum distribution of transmission ratio and optimum design for gear speed reducer 齿轮减速器传动比的最佳分配与优化设计 |
| 10. | Reasonable choice of the basic transmission ratio of non - h closed epicyclical gear train 封闭周转轮系基础传动比选择合理性研究 |