Linear error curve can be concave curve, it could be a convex curve.
线性误差曲线可以是凹形曲线，也可以是凸形曲线。
This blade has a gentle, sloping convex curve to the point versus the concave curve of the clip blade.
相对于回形刀刃的凹曲线而言，这种刀刃具有一条延伸到刀尖的、温和的凸斜率曲线。
In this paper, a new methodology was proposed based on the connected convex curve searching and ellipse fitting.
本文提出一种基于凸性连通分支搜索结合曲线拟合的多椭圆检测算法。
A molding for a cornice, having a partly concave and partly convex curve in profile, used especially in classical architecture.
反曲线饰纵断面部分为凹线，部分为凸形的檐口的线脚，尤用在古典建筑中。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
This paper tries to generalize the throwing objects from the one dimension pin to the convex curve in two dimension, and even the three dimensional regular tetrahedron and regular hexahedron .
在蒲丰投针问题的基础上，把投掷物由一维的针推广到二维的凸曲线，三维的正四面体、正六面体；
A small curve in the sliding part of the convex top of the lower nut acts as the wedge.
下螺母凸顶的滑动零件上有一条小弧线充当楔块。
The curve of human stomach is greatly contribute, but if the bag as the convex, too, is common!
肚子对于人体的曲线是大有贡献的，但是假使凸的像挂了布袋，太高了，就俗了！
Based on geometry and convex set methods, this paper gives systemically the definitions of global and local convexity for planar closed parametric curve, and proves the two definitions are equivalent.
从几何和凸集的角度，系统地给出了平面闭参数曲线全局凸和局部凸定义，并且证明了这两个定义是等价的。
Computational results showed that pressure distribution curve in parallel plates microchannel was convex decreasing parabolic curve.
模拟计算结果表明，平行平板间滑移流动的气体压强分布曲线是上凸的下降抛物曲线。
This paper discusses the relationship between the 1-stage progressive derivative and function convex, and two principles are presented, the curve convex judging principle is finally extended.
研究了函数的一阶右导数与函数凸性的关系，给出了二个定理，把曲线凸性判定定理加以推广。
An indifference curve is usually assumed to be convex.
无差异曲线通常呈凸形。
To improve performs of engine, the piston skirt curve is designed to be middle convex and varied elliptic pattern, copying manufacturing with master piston is commonly used.
为提高工作性能，活塞裙部设计成中凸变椭圆型，立体靠模仿形车削是常用的加工方法。
To improve performs of engine, the piston skirt curve is designed to be middle convex and varied elliptic pattern, copying manufacturing with master piston is commonly used.
为提高工作性能，活塞裙部设计成中凸变椭圆型，立体靠模仿形车削是常用的加工方法。
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