初尘
初尘-
理论分析表明：在一定风速范围内，过滤阻力随过滤风速呈二次方关系变化；当粉尘初尘形成后，过滤阻力随时间的增加呈线性关系变化。
Theoretical analysis shows that under certain wind speed range , filtration resistance changing with filtration velocity is a quadratic relationship ; When the dust in the early formation of dust , filtration resistance has a linear relation with the increase of the time change .