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The dual-objective optimization of surface discussed in this paper means that the optimal surface is not only smoothing but also corresponded to the shape of the back of the body. Since surface can be built with family of curves which are optimized with the same two objectives, the mathematical model of surface's constructional curve is critical to the success of dual-objective optimization of surface...
This text advance the method of automatism capture the engineering parameter in figure using computer, thread conversion and account the coordinate, capture the engineering parameter in figure, can frank capture the engineering parameter in curve from figure, especially for experience figure, capture the engineering parameter is achieve nicety and effective.
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