求翻译：过滤池是收集水冲渣的池子，横断面为矩形，为钢筋混凝土结构。池子容积应能满足储存一天以上的水渣。本设计设置有二个过滤渣池。过滤池的底部铺有硕石作过滤石，厚度为600mm。是什么意思？

Filtration ponds to collect water will slag pond, cross-section is rectangular, reinforced concrete structure. Pool volume should be able to meet the store more than a day of water residue. This design set of two filter residue pool. The bottom of the filter pool lined with a master stone filter sto