Top-Ranked Fine-Grained Categories of aircraft_wings: =>see poetic categories

• flexible:structure,
• practical:structure,
• large:structure,
• mechanical:assembly,
• flat:surface,
• hollow:structure,
• large:part,
• civil:structure,
• large:article,
• mechanical:part,
• special:structure,
• metallic:component,
• solid:surface,
• thin:structure,
• aerodynamic:surface,
• large:component,
• aerodynamic:object,
• model:structure,
• complex:structure,
• plastic:part,
• lightweight:component,
• structural:system,
• rough:surface,
• smart:structure,
• functional:surface,
• critical:component,
• over:surface,
• inanimate:object,
• critical:surface,
• structural:component,
• metal:component,
• elongated:structure,
• metal:part,
• solid:structure,
• rigid:body,
• elastic:structure,
• curved:surface,
• lightweight:structure,
• sculptured:surface,
• fragile:surface,
• high:place,
• complex:object,
• metal:object,
• active:surface,
• long:assembly,
• large:area,
• critical:area,