However, the higher the filtration rate, or the presence of viscous or low porosity dust layer, should take a slightly higher value.
但若采纳较高的过滤速度，或存在粘性或低孔率的尘埃层，应取稍高的数值。
2
The proposed rate is to be paint coated surface conditions (smoothness and porosity) and the specific paint used joint decision.
建议的涂布率是由待涂装表面的状况（光滑度和多孔性）和所用的特定涂料共同决定的。
3
The theory can be used to study the distributed strain, strain rate, porosity and plastic shear displacement in fault band, which presents a new method for quantitative analysis of ductile shear zone.