根据试验数据，得到了筒式阻性消声器的适应流速范围。
According to test datum, adaptive velocity scope of barrel dissipative mufflers is concluded.
对于每一气体压力，有与最佳增益曲线对应的流速范围。
It shows that there is an optimum flow velocity corresponding to the best gain distribution for a given operating pressure.
结果表明，在实验操作的流速范围内，过程属于外扩散控制。
Results showed that the process was in film diffusion control in the experimental velocity range.
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