Creating the steering system goal according to market study, creating the steering system concept and technical specification.
通过市场调研，制定转向系统的目标要求，确定转向系统的功能规范和技术要求。
Creating the steering system goal according to market study, creating the steering system concept and technical specification.
通过市场调研，制定转向系统的目标要求，确定转向系统的功能规范和技术要求。
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