filteringn.过滤adj.过滤用的动词filter的现在分词.filtern.过滤器；滤色镜；滤光器v.过滤；渗透filter property滤波器性质filter receiver过滤接受器,滤液受器filter-feeder滤食性动物filter blinding滤器堵塞filter criteria滤层准则filter passband滤波器通带filter analysis过滤器分析filter silencer过滤式消音器filter-plexer滤波器天线共用器filtering skill过滤技术