pressure face


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pressure face

pressure face
The side of a propeller or a helicopter rotor blade formed by the lower surfaces of airfoil elements, over which pressure is usually greater than the atmosphere.
References in periodicals archive ?
Communities with large numbers of residents with high blood pressure face a major public health challenge.
CPAPos "Oxygen Saver" delivers oxygen on-demand and uses a patented positive pressure face mask designed to improve patient compliance and comfort for people suffering from all types of shortness of breath.