By study the method of approximate developmentofsurfaceof revolution, the mathematiccal model of approximate development, precision analysis and error correction has been gained.
通过对不可展回转曲面近似展开方法的研究，得到了回转曲面近似展开、精度分析和误差矫正的数学模型。
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Swallowable Perfume, currently in its development phase, is said to work with the natural processes of metabolism, releasing fragrant molecules through the skin's surface during perspiration.