a valve that regulates the supply of fuel to the engine
a valve that regulates the supply of fuel to the engine
place limits on (extent or access)
a pedal that controls the throttle valve
reduce the air supply
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
control consisting of a mechanical device for controlling the flow of a fluid
one of the paired hinged shells of certain molluscs and of brachiopods
