| 1. | The impellers are kept in their proper relationship to each other by spur gear . 液轮之间借助于正齿轮保持彼此正常的关系。 |
| 2. | Spur gear drives for fine mechanics ; tables 精密机械用正齿轮传动装置.第4部分:表格 |
| 3. | Series of modules for gears ; modules for spur gears 齿轮的模数系列.直齿圆柱齿轮的模数 |
| 4. | Spur gear drives for fine mechanics ; calculating sheet 精密加工用正齿轮传动装置.计算表 |
| 5. | Tolerances for single - start hobs for involute spur gears 渐开线正齿轮用单头滚铣刀的公差 |
| 6. | Precise mapping of single helical - spur gear 单个斜齿圆柱齿轮的精确测绘 |
| 7. | Master gears for checking spur gears ; receiving arbors 检查圆柱直齿轮用的标准齿轮.安装心轴 |
| 8. | Fully constant mesh all spur gear transmission 全直齿常啮式变速器 |
| 9. | Equivalent spur gear of the helical gear 斜齿轮的当量直齿轮 |
| 10. | Specification for non - metallic spur gears 非金属正齿轮规范 |