fuel filter element

band-pass filter / bandpass filter (BPF)

dust filter / dust shield, particle filter

dust shield / dust filter, particle filter

filter housing / filter unit

filter unit / filter housing

particle filter / dust shield, dust filter

finite impulse response filter (FIR-filter)

passband filter; bandpass filter (BPF)

fuel filter

first stage fuel filter

fuel filter bowl

fine fuel filter

Proton Exchange Membrane Fuel Cell (PEM fuel cell, PEMFC)

analytical control element

civil affairs (CA) element

civilian element (peacekeeping)

combat element

combat service support element

combat support element (cmb spt elm)

command and control element

Command Element (CE)

command element

delay element

deployable joint staff element (DJSE)

detector element

dismounted element

element

element of resupply

followup element

foot element

initial element

intrinsic element