subaqueous fan-fan deltaic depositional system

fan marder [= fan marker beacon]

fan-in and fan-out

the selection of primary air fan and secondary air fan

a sealed book

active-type sealed oil blocking

Air-sealed

air-sealed experiment

all-sealed equipment

asphalt-sealed trap

bellow sealed valve

bellows sealed gate valve

bellows(-sealed) isolating valve

board style sealed secondary battery

bottom-sealed block

catalysis-digestion-sealed method

cementation sealed backing

circular sealed connect

circular sealed connector