如上图中曲线关系可得，漏风口质量流量受混合料层高度影响较小，出口质量流量受混合料层高度影响较大，出口质量流量随着混合料层高度的增大而减小。主要原因为料层增大，将导致料层阻力加大，从而使得在同样的压差下透过料层空气流量减少，而漏风口处受料层阻力小，故漏风口质量流量受料层高度影响不大。

As shown in the curve relationship in the above figure, the mass flow of the air leak is less affected by the height of the mixture layer, and the outlet mass flow is more affected by the height of the mixture layer. The outlet mass flow decreases as the height of the mixture layer increases. The main reason is that the increase of the material layer will increase the resistance of the material layer, which will reduce the air flow through the material layer under the same pressure difference, and the resistance of the material layer at the air leakage port is small, so the mass flow rate of the air leakage port is the material layer. The height has little effect.