Trees filter the wind and considerably reduce it, preventing those very large strong gusts that you so often find around tall buildings.
It won't take long to filter the coffee.
Patiently filters the water and digests all the pollution.
The country was just opening up to the outside world and new ideas were beginning to filter into the once-closed society.
Then I have to filter out all other energy emissions.
n. 滤波器；[化工] 过滤器；筛选；滤光器"
The crankcase has to drain before you put on the new filter.