短語詞組短語shrinkage cavity and porosity 縮孔縮松Axial Shrinkage Cavity 軸向縮孔Down -the-hole shrinkage-cavity working subsequently backfilling 淺孔留礦prediction of shrinkage cavity 縮孔預(yù)測shrinkage porosity and cavity 縮孔縮松shrinkage cavity formation 縮孔疏松shrinkage cavity porosity 縮孔shrinkage cavity predication 縮孔預(yù)測shrinkage cavity defect 縮孔缺陷 返回 shrinkage cavity