hole shrinkage
短语词组
- shrinkage hole and shrinkage marks 缩孔缩痕
- shallow hole shrinkage method 浅孔留矿法
- shallow -hole shrinkage 浅孔留矿法
- short hole shrinkage 浅孔留矿
- short hole shrinkage stoping 浅眼留矿法
- short hole shrinkage mining 浅孔留矿采矿法
- short -hole shrinkage mining 浅孔留矿法
- short hole shrinkage stoping method 浅孔留矿采矿法 返回 hole shrinkage