参数方程

Instead of a direct insertion of the sweep angle, the parametric equation for ellipse has to be used.

而不是一个后掠角直接插入，对椭圆参数方程的使用。"/页"

Based on vector expression of parametric equation of a third－order Bezier curve, Bezier curve interpolation algorithm is proposed in order to imitate tabulation curve.

为了描述列表曲线，本文从三次Bezier曲线参数方程的矢量表达式出发，推导出CNC系统三次Bezier曲线插补法。

METHODS: Construct proper accumulation normal distribution function form and fit with our experimental data, then compare with the common 4-parameter equation fitting.

构建累积正态分布函数的适当表达形式，对作者实验室所获得的实例数据进行拟合，同时与常用的四参数方程拟合进行比较。

METHODS Construct proper accumulation normal distribution function form and fit with our experimental data,then compare with the common 4-parameter equation fitting.

方法构建累积正态分布函数的适当表达形式，对实验所得数据进行拟合，同时与常用的四参数方程拟合进行比较。

Productive expansion curve is the orbit of equilibrium point's variation in optimum factor combination caused by expanding firm's produce scale when not changing the price of produce factors.

文章在Cobb-Dauglas生产函数的基础上，推导出扩展线的参数方程，并得到成本支出与产量之间的一个函数关系，用以分析规模报酬的情况。1 Cobb-Dauglas生产函数Cobb-Dauglas生产函数是由数学家柯布和经济学家道格拉斯于上世纪30年代初一起提出来的。

Based on the arc length formulae of the parallel to the easement curve and its property, this paper gives the parameter equations of the parallel to the easement curve taking the arc length itself as variable.

基于缓和曲线平行线弧长公式及其性质，给出了缓和曲线平行线以其自身弧长为变量的参数方程。

Consider a plane curve with parametric equation.

设平面曲线的参数方程为，则曲率为

This article through the introduction exposure parametric equation, obtains the method of the automatic control exposure.

本文通过介绍曝光参数方程，得出自动控制曝光的方法。

What Is a Parametric Equation?

什么是参数方程 30

According to the helix theories of cylinder,the essential factors of helix with torus are analyzed,and the parametric equation of helix on torus is given based on analytic geometry.

根据圆柱螺旋线理论，分析了形成圆环螺旋线的要素，并运用解析几何方法建立了圆环螺旋线的参数方程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。