煤粉改性剂zzz
coal modifying additive zzz
石灰粉煤灰稳定粉性土
stable lime flyash silty sand
水泥低活性粉煤灰碎石
the cement and low activity fly-ash stabilized cru
粉煤灰－煤矸石基水泥
fly ash-gangue base cement
石灰－粉煤灰固化
lime-fly ash stabilization
石灰粉煤灰稳定碎石基层
lime-fly ash stabilized aggregate base course