hole shrinkage

短语词组

短语

• 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
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