shrinkage stoping

常見例句

The paper introduced shallow hole shrinkage stoping method that has been used in Baoziwan Gold Mine for many years.
敘述了堡子灣金礦多年來應(yīng)用淺孔留礦采礦法的生產(chǎn)實踐以及對采切工程的改進。
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.
介紹了巖金礦山廣泛使用的淺孔留礦法的若干設(shè)計原則及施工經(jīng)驗，供同類礦山參考。
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.
對極破碎薄礦體的開采，采用了將常規(guī)的留礦法中分選廢石改為分選富礦石留貧礦石的采礦方法。