1) the curve equation of focus
焦点曲线方程
1.
Through studying two pairs of opposite vertices in tetragon, the author derived the curve equation of focus in form of complex number and its expression of right angle coordinate.
从研究四边形 (或四角形 )的两对对顶点出发 ,推导出复数形式的焦点曲线方程及其直角坐标表达
2) the focal point and the prefocal curve
焦点和焦前曲线
3) curve equation
曲线方程
1.
Study on curve equation of unfolded-drawing on the cut-cone surface
截头圆锥体表面交线展开图曲线方程的研究
2.
The curve equations of stereographic projections for meridian and woof in Wulff net are worked out with mathematical method.
运用数学方法推导出了乌氏网极射平面投影经线和纬线的曲线方程,并在此基础上,介绍了一种利用计算机精确绘制任意经度和纬度乌氏网的方法。
3.
The curve equation of the developed pattern of the arciform plate is presented.
介绍了塔器内梁型气体喷射式填料支承及其拱形板展开图 ,并通过详细计算给出了该展开图的曲线方程。
4) curvilinear equation
曲线方程
1.
In this paper, the curvilinear equation of the complexometric back titration has been derived, the complexometric back titration curve has been drawn and the pN break has been calculated.
推导了络合返滴定曲线方程 ,绘制了络合返滴定曲线和计算了pN突跃。
2.
Here we obtain the complete ration geometrical characteristic of the curvilinear equation in plane by using translation and rotation of axes,therefore we can show the important parameter of the curve expressed as their idiographic equation conveniently.
文章用坐标平移与旋转方法,获得了曲线方程(a1x+b1y+c1)(a2x+b2y+c2)=1((a12+b12)(a22+b22)≠0(1)在xoy平面上的完全定量几何特征。
3.
With the methods of fitting,interpolation,etc,a curvilinear equation which can conveniently and quickly describes the bending centerline has been obtained.
以条材类零件受到集中力作用产生的弯曲中心线为研究对象,通过拟合、插值等方法,分析得出一种方便、快捷描述弯曲中心线的曲线方程。
5) the geometrical properties
曲线方程
1.
Then according to the geometrical properties of plastic dams, the curve equations of the cutting face are successively derived out, and the curve shape are also fitted.
并按照坝袋的几何性质导出坝体截面各段曲线方程,拟合出坝体截面的曲面外形,为坝体整体的CAE建模和加载计算分析做好准备工作。
2.
The curve equations of different sections are successively derived according to the geometrical properties of plastic dams,and the shape of the dam are generated.
按照坝袋的几何性质导出坝体截面各段曲线方程,拟合出坝体截面的曲面外形,为坝体整体的CAE建模和加载计算分析做好了准备工作。
6) focal conic
焦点圆锥曲线
补充资料：曲线的焦点
曲线的焦点
focus of a curve
曲线的焦点【肠。巧of aa团，e;中。叮c] 二阶曲线所在平面上的点F，使得曲线上任意点到F的距离与到一给定直线(准线(directrix))的距离之比为一常数(离心率(~n咏ity)).亦见圃锥截线(conlc涨℃tions) 二阶曲线的焦点能定义为平面的圆点(面卫议山rpoints)到该曲线的切线的交点.此定义亦能被推广至n阶代数曲线.A.石.“Ba日o”撰[补往]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条