From the Angle of human society's civilization history, the agricultural civilization of China's traditional economy and society, should date back to China's primitive society.
从人类社会文明史角度来讲，传统中国经济社会的农业文明，它应该追溯到中国原始社会。
Use simplicity as design concept to achieve the cockpit adjustability with adjustable stem and most primitive way by means of seat tube Angle. A perfect design concept for urban cycling.
利用简洁设计原理将座舱调整方式与最原始的角度调整进行结合，达到单一设计却具多种调整的座舱距调整方式为都会生活车款提供绝佳的调整方法。
Use simplicity as design concept to achieve the cockpit adjustability with adjustable stem and most primitive way by means of seat tube Angle. A perfect design concept for urban cycling.
利用简洁设计原理将座舱调整方式与最原始的角度调整进行结合，达到单一设计却具多种调整的座舱距调整方式为都会生活车款提供绝佳的调整方法。
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