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An axial-flow compressor is a device that increases the pressure of a gas by mechanically decreasing its volume. In this type of compressor, the gas flows parallel to the axis of a rotating rotor that has aerodynamically shaped blades. These blades are surrounded by stationary blades within a casing. As the gas passes through, its velocity is alternately increased and decreased. The increase in velocity boosts the gas's kinetic energy, and this energy is then converted into increased pressure as the velocity decreases. This design is commonly used in jet aircraft engines and gas turbines. Axial-flow compressors are known for their efficiency, surpassing that of older centrifugal compressor designs.12

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