FILt definition
FILt means the Periodic Final Reference Equity Index Level applicable to each period t; and
Filter means material placed in the useful beam to preferentially absorb selected radiations.
Filtration means a process for removing particulate matter from water by passage through porous media.
Tube means an x-ray tube, unless otherwise specified.
Valve means a device used to control the flow of water in the irrigation system.
Sensor means any measurement device that is not part of the vehicle itself but installed to determine parameters other than the concentration of gaseous and particle pollutants and the exhaust mass flow.