The special Computer Aided Design (CAD) system is the necessary way to improve the sound quality of vehicle by promoting the design quality and efficiency of products.
专用计算机辅助设计（CAD）系统可以改善产品设计质量、提高生产效率，是提高车辆声品质的重要方法。
The special Computer Aided Design (CAD) system is the necessary way to improve the sound quality of vehicle by promoting the design quality and efficiency of products.
专用计算机辅助设计（CAD）系统可以改善产品设计质量、提高生产效率，是提高车辆声品质的重要方法。
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