BEFORE NOw 在市场反馈和C测试的基础上改进设计 Design refinement based on feedback from product marketing/CI testing Design refinement 与核心设计人员和结构工程人员讨论 「设计方案 Review design with core design team and 4440 mechanical engineering team 20④66o890②Design refinement 在市场反馈和CI测试的基础上改进设计 Design refinement based on feedback from product marketing / CI testing 与核心设计人员和结构工程人员讨论 设计方案 Review design with core design team and mechanical engineering team