片语
shrinkage hole and shrinkage marks缩孔缩痕
shrinkage hole and slack缩孔缩松
shrinkage hole porosity缩孔
shallow-hole shrinkage浅孔留矿法
reduction shrinkage hole还原收缩孔
shrinkage stoping with short hole浅孔留矿法
shallow hole shrinkage method浅孔留矿法
hole shrinkage缩径
shrinkage stoping with shallow hole浅孔留矿