过滤器

filter factors───[光]滤光因数

filter factor───[光]滤光因数

filter feeders───滤食动物

filter feeder───滤食动物

filter lane───转弯车道

filter light───滤光器

filter lights───滤光灯

filter out───过滤掉；不予注意；泄露

filter paper───滤纸（尤制定量滤纸）