A particular limiting form of filter bed leads to an identical system of equations in fact.
The filter bed site provides a unique opportunity for recreational-type development.
The fumes should, technically, be removed by a biological filter bed.
It is the very thing we use for our drinking supplies, namely, a filter bed of sand.
Previous management includes a limestone filter bed, installed in the 1960s, which is now redundant.
It also allows the mash of converted grain to create a filter bed during lautering (see brewing).
The filter bed is still in place and can be seen from the road.
This is vital to the process in order to prevent potential clogging of the filter bed.
