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In this method Bend stream-tube is used to the single stream-tube. Regarding the propeller as a skew actuator. 该方法是以朱典明和谷口中所用方法为基础,用“弯曲流管”代替“单向流管”,将摆线推进器抽象为斜向作用盘,在斜向作用盘的作用下,产生斜向诱导速度,使水流方向发生改变。