产品设计一书《设计草图》，介绍了产品设计整个草图绘画流程，有教程、讲解和案例。
The product design book Design Sketching explains the entire process of sketching for product design. It offers tutorials, explanations, and examples.
产品设计师会花费大量的时间画草图。
构思草图阶段的工作将决定70%的产品设计成本和效果。
The work at the sketch stage almost determines 70% cost of the product design and the result .
构思草图阶段的工作将决定70%的产品设计成本和效果。
The work at the sketch stage almost determines 70% cost of the product design and the result .
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