adevicecontainingpaper, sand, chemicals, etc. thataliquidorgasispassedthroughinordertoremoveanymaterialsthatarenotwanted滤器;过滤器◆anair/oilfilter空气过滤器;滤油器◆acoffee/waterfilter咖啡过滤器;滤水器◆filterpaperforthecoffeemachine咖啡机滤纸◆Hesmokescigaretteswithoutfilters. 他吸没有过滤嘴的香烟。adevicethatallowsonlyparticulartypesoflightorsoundtopassthroughit滤光器;滤声器;滤波器(computing计算机) aprogramthatprocessesinformationtoexcludethetypeswhicharenotwantedorthatstopscertaintypesofelectronicinformation, email, etc. beingsenttoacomputer筛选(过滤)程序
fil·terBrE/ˈfɪltə(r)/NAmE/ˈfɪltər/verbpresent simple - I / you / we / theyfilterBrE/ˈfɪltə(r)/NAmE/ˈfɪltər/present simple - he / she / itfiltersBrE/ˈfɪltəz/NAmE/ˈfɪltərz/past simplefilteredBrE/ˈfɪltəd/NAmE/ˈfɪltərd/past participlefilteredBrE/ˈfɪltəd/NAmE/ˈfɪltərd/ -ing formfilteringBrE/ˈfɪltərɪŋ/NAmE/ˈfɪltərɪŋ/[T]~sthtopassliquid, light, etc. throughaspecialdevice, especiallytoremovesththatisnotwanted过滤◆Alldrinkingwatermustbefiltered. 所有饮用水必须经过过滤。◆UseasunblockthatfiltersUVAeffectively. 使用能有效滤掉长波紫外线的防晒霜。◆(figurative) Mysecretaryisverygoodatfilteringmycalls(= makingsurethatcallsthatIdonotwantdonotgetthrough). 我的秘书很会替我推掉不相干的电话。➡ see alsofiltration