| 1. | The main shaft grouting technology in pengzhuang coal mine
彭庄矿井主井注浆技术 |
| 2. | Technical specification for main shaft of large turbine
大型水轮机主轴.技术规范 |
| 3. | Main shaft seal equipment achieves national patent
主轴密封装置获国家专利。 |
| 4. | Ring of the main shaft , axle of gear wheel )
里程表机芯（主轴环、齿轮轴） |
| 5. | Defibrator ? technical specifications of main shaft
热磨机主轴技术条件 |
| 6. | Freezing design of thick overburden in main shaft of xuehu mine
薛湖矿井主井深厚表土冻结设计 |
| 7. | Construction practice of main shaft freezing section of panbei mine
潘北矿主井冻结段施工实践 |
| 8. | Technical transformation of skip in main shaft of no . 2 xinji mine
新集二矿主井箕斗的技术改造 |
| 9. | Adjustment and replacement of main shaft seals of shield machine
盾构机主轴承密封的调整和更换 |
| 10. | Application of new grouting material in the main shaft construction
注浆新材料在井筒施工中的应用 |
