graded filter信息详情
回水过滤器
graded───v.分级（grade的过去式和过去分词）；adj.分等级的；按年级分的
not graded───未分级
filter───n.（Filter）（德）菲尔特（人名）；v.过滤；渗透；用过滤法除去；慢慢传开；缓行；仅可左转行驶；n.过滤器；滤波器；筛选程序；分流指示灯
graded papers───评分论文
graded reader───分级读物；n.年级课本，分级读本
graded readers───分级读本（gradedreader的名词复数）；n.年级课本，分级读本( graded reader的名词复数 )
steeply graded───陡坡
cabin filter───座舱过滤器
filter mask───[医]过滤器面具，过滤式防毒面具
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。
Ceramics with graded pores possess the unique advantages of porous ceramics and functional gradient ceramics, which can be applied as thermal-insulating materials, filter materials and bio-materials.───气孔梯度陶瓷集成了多孔陶瓷与梯度功能材料的双重优点，因而在绝热保温、净化分离、生物材料等诸多领域有着广泛的应用。
has just begun to study the mechanism and design method of broadly graded soil filter.───砾石土反滤层工作机理及设计方法的研究，国内外均刚开始。