basal medium Eagle Eagle
automatic emergency shut-down and slow-down circuit
COOL DOWN; COOLING DOWN
down-converter(down-convertor)
down-supply and down-return
printed down-proof cotton cloth duck down quilt
run down [= running down]
110kV direct step-down rectifying equipment
3-2 Pull-Down detection
a cap with inner tube and down-flow
a centipede dies but never falls down
Ability breaking down table
accelerated break-down test