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生成电动折叠城市滑板车的工业设计概念图。采用马克笔速绘风格，结合动态速度线和灰色调阴影，展示侧视图和折叠后的形态对比。

AI绘画提示词中文 – 电动折叠滑板车：动态马克笔渲染与折叠对比图

电动折叠城市滑板车概念，工业设计草图，马克笔手绘，侧视图和折叠视图对比，动态速度线，流畅的曲线，灰色马克笔阴影配以单色黄色点缀，产品概念开发页，线条尖锐，干净的技术渲染在白色背景上。

AI art prompt English – Electric Folding Scooter Dynamic Marker Concept Sketch

Electric folding urban scooter concept, Industrial Design Sketch, Marker drawing, side view and folded view comparison, dynamic speed lines, smooth curves, grey marker shading with single yellow accent, Product Concept development sheet, sharp lines, clean technical rendering on white.