The gravelfilter is the most commonly used filter in all countries nowadays.
砾石过滤器是当今各国最常使用的过滤器型式之一。
2
After reviewing a few design methods of sand gravel filters, a new design method of filter using broad graded materials is proposed in the paper.
本文在回顾了滤层保砂性设计的几种方法后,提出了广级配砂砾滤层保砂性的设计计算式。
3
The process includes the waste purification from oil emulsion in Tilted-Plate Separator and the suspension separation in the downward-flow sand-gravelfilter.