Ore drawing mode的用法和樣例：
例句
- Taking Jingtieshan Mine as an example,the peper deals with several problems with applying non-dilution ore drawing mw thod.
以鏡鐵山礦為例研究了無貧化放礦方式在礦山應用的若干問題。 - Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing.Non-dilution ore drawing is most ideal drawing mede.
研究表明，造成無底柱分段崩落法來出礦石貧比大的根本原因在於採用了不合理的截止品位放礦方式，無貧化放礦是無底柱分段崩落法最為理想的放礦方式。
