... turnable blade 可转动式桨叶 turnable shrouded screw 转动导管螺旋桨 tweendeck cargo space 甲板间舱 ...
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... 转动导管螺旋桨 turnable shrouded screw ; rudder propeller ; duckpeller 导管螺旋桨舵 propeller 减速型导管螺旋桨 decelerating ducted propeller ...
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... duckpeller导管推进器 duckpeller转动导管螺旋桨 ducks薄帆布工作服 ...
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