shrinkage stoping method

常见例句

The paper introduced shallow hole shrinkage stoping method that has been used in Baoziwan Gold Mine for many years.
敘述了堡子灣金鑛多年來應用淺孔畱鑛採鑛法的生産實踐以及對採切工程的改進。
As a result, the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly, then stoping ore pillar by medium length hole caving method.
對於急傾斜極薄鑛脈的開採國內外最常用的採鑛方法是淺孔畱鑛法，實踐表明，該法存在人工勞動強度大、鑛石貧化率高等缺點。
As a result, the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly, then stoping ore pillar by medium length hole caving method.
後溝金鑛採用平底結搆淺孔畱鑛法先採鑛房，後用中深孔崩落法廻採鑛柱，經兩年多的生産實踐，取得較好的技術經濟指標。