平行曲线、平行曲面的研究-毕业论文参考网 关键词：平行曲线；平行曲面；空间曲线；曲率；曲线带；测地线 [gap=632]Keywords: Parallel curve; parallel surface; space curve; curvature; curve belt; geodesic
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率先来用法则(Law)、样条线(Spline)和平行曲线(Parellel)等方法精确定义出了均匀变化、曲率连续的内外缘条厚度，并时缘条、腹板、筋条的统一建模方法进行了研究与分析;尝试规范了精确、简...
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... 平行射影：parallel projection 平行曲线：parallel curved lines 平行六面体邻域：parallelepipedal neighborhood ...
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用划平行曲线法可勾画出腺样体的长径。
Drawing parallel winding lines can outline the adenoid length.
本文用空间解析几何方法，推导了在一般非平行斜入射光条件下，裂纹体表面所形成的反射焦散线和初始曲线的方程。
The equations of caustic curve and its initial curve for a crack illuminated by an oblique incident light beam in reflection arrangement were deduced using the space analytic geometry method.
推导了缓和曲线的平行边线弧长计算公式，证明了平行边线的两个性质，对实际线路测设工作有指导意义。
The paper deduces the calculation formula of parallel sidelines of spiral curve, and proves two characters of parallels sidelines. It can be applied to instruct actual setting-out work.
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