The coil material can be stacked, reducing feeding time and saving coil changing time. 卷料积材可重叠放置，减少填料次数，节省换料时间。
The result showed that the backfilling material made with phosphogypsum and fly ash can completely meet the technical demand of industrial fifing. 其试验结果显示，用磷石膏和粉煤灰制作胶结充填料是完全满足现场工艺的要求。
