He then treated the evolute of a plane curve.
然后他讨论了平面曲线的渐屈线。
Let's say that I have a plane curve and a vector field in the plane.
有一条平面曲线和这个平面上的向量场。
In NC machining, the points must be obtained from plane curve before it is interpolated by arc.
数控加工中，平面曲线的圆弧插补前，先要在曲线上取节点。
In this paper a method for detecting sharp "corners" in a chain-coded plane curve is described.
本文描述了一种在平面码链曲线上检测尖锐角点的方法。
A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line.
最大食分曲线为所有点的轨迹，在那些地方，在给定的时间里达到最大食分。
Taking plane curve machining for example, the motion schemes of machine tools with two freedoms are presented.
以平面曲线加工为例，给出了所有两自由度机床的运动方案。
The paper introduced a design method that the plane curve design of out distance long control with whirl line.
本文提出了由外距长控制设计的带回旋线的平曲线设计方法，包括公式的推导、用步骤和实例。
A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it.
由完全相交的一个圆锥体和一个平面的交集所形成的闭合的平面曲线。
A new effective method which makes use of quaternion theory is presented to implement location transformation of a plane curve.
利用实四元数理论，提出了一种将一般位置平面曲线变换到空间任意指定位置的一种简捷方法。
Programming by the plane curve unwrapped from the helix curve and cutting layer by layer, we created the variable pitch screw on the 3.5 axis NC milling.
文章基于3.5轴数控铣床，利用螺旋线展开的平面曲线编程，分层切削，加工出变螺距螺纹；
The symmetry algebras of 1 + 1 dimensional nonlinear evolution equation arising from the motion of plane curve in affine geometry are systematically studied.
系统地研究了来自于射影几何中平面曲线运动的1 + 1维非线性方程的对称代数。
When the point moves along the plane curve , the trace curve of the point is called the evolute of the curve , denoted by, and is called the involute of the curve .
当点沿曲线移动时，相应的曲率中心的轨迹曲线称为曲线的渐屈线，而曲线称为曲线的渐伸线。
This paper has proved that a plane curve cis a circle if and only ifc is the locus of a moving point that has a constant second power average of distances from n fixed points.
本文提出了确定内燃机配气机构刚度的三种数据处理方法，并对处理结果作出了分析、比较，确认二次刚度平均法是一种较好的实用方法。
The structure can convert the rotation of a drive belt pulley into the plane curve movement of the pivot bolt, realize motor driving of the stapler and ensure the stapling strength and quality.
采用这样的结构后，可以实现将主动带轮的转动转变为枢轴螺栓的平面曲线运动，实现订扣机的电机驱动，保证订扣力度和订扣质量。
His plane swooped a beautiful curve up and down.
他的飞机在上下翻飞时画出了一条美丽的曲线。
In the line integral in the plane, you had two variables that you reduced to one by figuring out what the curve was.
在平面上的线积分中，有两个变量，可以通过了解曲线的形成规律，从而去掉一个变量。
I have a curve in the plane and I have a vector field.
这有一条平面曲线和一个向量场。
Well, you just take a closed curve in the plane.
只需在区域中取一条封闭曲线。
C So, we have a curve in the plane, c.
平面上有一条曲线。
There is only one thing that is enclosed by this curve in the plane.
平面上，被曲线包围的就只有一个“曲面”了。
We had a curve in the plane and we had a vector field.
平面上有一曲线，且存在着向量场。
(geometry) a curve generated by the intersection of a plane and a circular cone.
(几何)一个平面和一个圆锥体相交而生成的曲线。
An open curve formed by a plane that cuts the base of a right circular cone.
一个平面与正圆锥体的底部相交而形成的不闭合的曲线。
The motions of plane and space curve have a wide range of applications.
平面和空间曲线的运动有着广泛的应用。
Comprehensive curve pattern, attenuation coefficient and the relationship of plane position and geological abnormity had been conducted.
研究了综合曲线的形态、衰减系数大小，平面位置与地质异常体的类型定性关系。
But in single loudspeaker, double loudspeaker linear center, the oval curve is in plane wiring is essential linear one.
而在单喇叭、双喇叭的线形中，卵形曲线是在平面布线不可缺少的线形之一。
The definition of plane central curve with positive integer degree was proposed.
给出了平面正整数次中心曲线的定义和中心命题。
This paper suggests a new method of rapid and automatic measuring the spectral diffraction efficiency curve of plane grating.
本文提出了一种快速自动测试平面光栅光谱衍射效率曲线的新方法。
Hepatic blood flow earlier perfusion phase, time-activity curve(TAC), hepatic blood pool phase(plane and tomography), CT and color ultrasound were compared as control group.
再与肝血流灌注相的早期充盈、时间活性曲线（TAC）、肝血池（平面及断层）显像、CT和彩超检查作对照。
In the paper the curve interpolating calculation AD error analysis for CNC grinding of plane CAM are discussed, and the tool - path generation is also analyzed.
论述了数控磨削平面凸轮的误差分析和曲线插值计算，并讨论了砂轮的刀位轨迹的生成。
应用推荐