By using the pressure deflection diagram, 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。

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After this flow pattern transformed into a flow pattern with thermal chocking at the combustion chamber exit and with a pseudo-shock wave developing in the inlet diffuser.

之后，在燃烧室出口出现热拥塞现象、在进气道扩压段产生伪激波流态。

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After this flow pattern transformed into a flow pattern with thermal chocking at the combustion chamber exit and with a pseudo-shock wave developing in the inlet diffuser.

之后，在燃烧室出口出现热拥塞现象、在进气道扩压段产生伪激波流态。

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