shrinkage hole
短语词组
- shrinkage hole and slack 缩孔缩松
- shrinkage hole porosity 缩孔
- reduction shrinkage hole 还原收缩孔
- shrinkage hole and shrinkage marks 缩孔缩痕
- hole shrinkage 缩径;井眼缩径
- shrinkage stoping with shallow hole 浅孔留矿
- shrinkage stoping with short hole 浅孔留矿法
- shallow hole shrinkage method 浅孔留矿法
- shallow -hole shrinkage 浅孔留矿法 返回 shrinkage hole