By using the pressure deflectiondiagram, the flow structure for type 4 shock wave interaction pattern is analysed, and we explains why the surface pressure is very high in this case.
借助于激波极曲线，对第4类激波干扰结构进行了分析，解释了干扰引起物面压力增高的原因。
2
Authors design the maintenance processes, compile the operation schedule by Gantt chart and network diagram and analyze the schedule by deflection analysis method.