boil down to

automatic emergency shut-down and slow-down circuit

COOL DOWN; COOLING DOWN

down sprue (down-gate)

down-comer (down take)

down-converter(down-convertor)

down-gate (down sprue)

down-supply and down-return

look-down shoot-down

printed down-proof cotton cloth duck down quilt

run down [= running down]

alkali boil out

alkali boil-out

alkaline boil-out solution

anti-boil

anti-boil protection

atmospheric boil

blowout boil

Boil