1·Conclusion:The cause of many complications after cutting radius head is ulnohumeral joint loading disorder and longitudinal axis unstability.
结论：桡骨小头切除后肱尺关节载荷紊乱及纵轴失稳是多种术后并发症的原因。
2·On the basis of analyses of wellbore unstability mechanism, the changing law of shale mechanics parameters was established after shale hydration by the experimentation.
在井眼失稳机理分析的基础上，经室内实验得出泥页岩水化后岩石力学参数的变化规律。
3·The paper mainly introduced the treatment measures of geologic hazards, such as geologic slide, rock and sand high slope unstability etc.
主要对地质滑坡、岩质、砂质高边坡失稳等地质病害的防治措施，进行了简要的介绍和论述。