首先尝试采用任意曲面椭圆方程，数值生成任意回转面上的叶栅c网格。
First attempts to apply elliptic equation of curved surfaces to generating C-type cascade grids.
我将要用椭圆选框工具创建一个曲面反射，不过如果你愿意你可以用矩形选框工具创建一个平面反射。
I will be creating a curved one with the? Elliptical Marquee Tool, but you may create a flat one with the? Rectangular Marquee Tool if you wish.
本文通过引入帽子屈服曲面，并对帽子曲面和塑性势能曲面用椭圆函数和圆函数形式进行了简化，从而得到了新的判定条件。
This article introduce the "cap yield curve model", simplify the cap yield surface and plastic potential energy surface by ellipse and circle, and get a new justify condition.
同时它还能精确表示圆弧、椭圆弧等二次曲线，推广到空间即可以表示旋转曲面。
Also the curves can express the circle arc and ellipse arc and can construct rotate surfaces.
目前，国际上足球鞋的鞋尖都是椭圆型，而且鞋面部分为了与脚背曲面相吻合也设计成由内向外逐渐倾斜。当足球与鞋尖接触时因为接触面很小，很容易产生偏差。
At present, the tips of the existing football shoes in the world are all oval and the shoe face, in order to tally with the curved surface of human instep, designedly tilts from inside to outside.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
In this paper, it is presented that the locus of a line crossedwith each of two guide lines and a guide conic not being on a commonplane is a ruled surface of fourth order.
其特点是外形自由，追求动态，喜好富丽的装饰和雕刻、强烈的色彩，常用穿插的曲面和椭圆形空间。
Shape is characterized by freedom, the pursuit of dynamic, rich and beautiful decoration and carving preferences, strong colors, often interspersed surface and the oval-shaped space.
自由曲面，椭圆，矩形，和魔术棒的选择。
Freeform, elliptical, rectangular, and magic wand selections.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
It is presented that the locus of a line crossed with each of two guide line and a guide conic not being on a common plane is a ruled surface of fourth order.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
It is presented that the locus of a line crossed with each of two guide line and a guide conic not being on a common plane is a ruled surface of fourth order.
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