split-drag-rudder 开裂式方向舵
A drag rudder is mostly used by tailless aircraft.
阻力方向舵在无尾飞机上得到广泛的应用。
The high-aspect-ratio flying wing eliminates vertical tail and conventional rudder, and uses instead a split drag rudder with large deflection as its directional control surface.
大展弦比飞翼布局飞机取消了垂尾和常规方向舵，通常采用大偏角的开裂式方向舵作为偏航操纵面。
When all's said and done, the most important factor in choosing a rudder for a powerboat is drag.
当所有的说，在选择了摩托艇舵做，最重要的因素是拖累。
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