shrinkage stoping

常见例句

The paper introduced shallow hole shrinkage stoping method that has been used in Baoziwan Gold Mine for many years.
叙述了堡子湾金矿多年来应用浅孔留矿采矿法的生产实践以及对采切工程的改进。
The paper introduced the design principles and construction experiences of shrinkage stoping with short hole in vein gold mine, which is reference for other similar mines.
介绍了岩金矿山广泛使用的浅孔留矿法的若干设计原则及施工经验，供同类矿山参考。
In mining the extremely fractured thin ore body, the separation of waste rock in the conventional shrinkage stoping was replaced by the separation of the rich ore and retaining the lean ore.
对极破碎薄矿体的开采，采用了将常规的留矿法中分选废石改为分选富矿石留贫矿石的采矿方法。