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; 機翼; 翼面一個(gè)部件或平面,如機翼、螺旋槳葉、方向舵等,其形狀或方位控制穩定性、方向、抬升、沖擊或驅動(dòng)
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