英和和英

a condenser speaker

a displacement-type compressor

a condensing engine

a detonator

an exhaust fan

a steam-pump

an apparatus that generates vapor

a suction pump

a suction pump

a vacuum coffee maker

air intake of a carburetor

a step‐down transformer

a step‐up transformer

a blower

a shaft for ventilation

exhaust hood over a kitchen range

a steam pump

a shutoff valve

a ceramic filter

a chamber for compressed air

a pressure regulator called governor

a step-up transformer with an air core

a gas leak detector

anvil-shaped super-high voltage generator

an evaporative cooler

a revolving sprinkler

a fan called a ventilation fan

a tube that a submarine uses to take on fresh air, called snorkel

a steam fire-engine

a ventilator