| 摘要 |
A marine rudder is provided to have an electrical field nose strip and rear end strip in order to prevent the corrosion due to the cavitation. A marine rudder comprises: a key wing(100) including two key wing units(10) to be piled up; a front nose strip(11) facing towards propeller; and a rear end strip installed in the direction getting far from the propeller in order to cover the wall surface of the key wings. One end of the front nose strip faces in a counterclockwise direction. The other end of the front nose strip deviates from the center to face a clockwise direction.
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