Dust concentration from driving aspect to blowing holeis from high to low and presents vertical distribution.Pellet in laying blowpipe section presents horizontal distribution.

 
  • 縱向分布呈現掘進(jìn)面至送風(fēng)口濃度曲線(xiàn)由高漸低,風(fēng)管鋪設段呈水平分布,提示風(fēng)管鋪設段隧道內污染物排出順利。
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