restricted landing area mark

full area

full mark

traditional full mark

grass landing area

landing area

landing area {= LZ}

landing area effective

landing area flood-light

area, area side trapezoid

area-area

area-area contact

wetted surface area [= area of wetted surface]

winching area mark

full diversity and full rate

Full-mechanized Mining Full Height

full-motion full-screen video

full-screen full-motion video (FSFMV)

full-screen full-motion video(FSFMV)