There are two main ways to design and develop products: one is original design, that is, from scratch, from creative to production and production; the second is improved design, that is, based on the original product, appropriate improvement and local Innovation. Generally speaking, in the product design process, except for the new concept design with a small number of products, the design of most products has great similarity and inheritance to the design of similar products, and it is hoped to be used as a reference material. The sample is quickly measured,
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