并且证明悬料区的总压降可以近似等于立管的压降。
The total pressure drop in hung-up regime is approximately equal to that in the standpipe.
分析得到：云雾区超压远远大于冲击波作用区的超压。
The overpressure in the cloud zone was much higher than that in shock wave zone.
分析得到：云雾区超压远远大于冲击波作用区的超压。
The overpressure in the cloud zone was much higher than that in shock wave zone.
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