| 单词 | 螺旋桨叶 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔TURN〕The blades of the helicopter whirled powerfully overhead. 直升机的螺旋桨叶在头顶上强有力地旋转着。朗文写作活用〔airfoil〕A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.翼剖面；机翼；翼面：一个部件或平面，如机翼、螺旋桨叶、方向舵等，其形状或方位控制稳定性、方向、抬升、冲击或驱动美国传统〔chopper〕Overhead, the chopper roared and the big blades churned the air.头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。柯林斯高阶〔fatigue〕The crash was caused by metal fatigue in one of the propeller blades.坠机事件是因一片螺旋桨叶产生金属疲劳造成的。剑桥高阶〔feather〕To alter the pitch of (a propeller) so that the chords of the blades are parallel with the line of flight.顺流交距：把螺旋桨叶转到使桨弦大致和拉力轴线平行美国传统〔helicopter〕An aircraft that derives its lift from blades that rotate about an approximately vertical central axis.直升机：螺旋桨叶围绕一根近似垂直的中心轴旋转而使其升高的飞机美国传统〔spinner〕A fairing fitted over the hub of the propeller in some aircraft.螺桨毂盖，机头整流罩：某些飞机上装于螺旋桨叶毂上的整流罩美国传统 |
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