查询词典 parametric equation

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。

By making use of the definition of derivative ,one can calculate the derivative of demarcation point ,the derioative of the special elementary function,the derivative of parametric equation.

利用导数的定义可求分界点的导数，特殊初等函数的导数和某些参数方程的导

In the article we deduce parametric equation on expansion path from Cobb-Dauglas production function and get a function relationship between cost expenditure and output to analyse the condition of returns to scale.

Cobb-Dauglas生产函数被认为是一种很有用的生产函数，因为该函数以其简单的形式描述了经济学家所关心的一些性质，它在经济理论的分析和实证研究中都具有一定意义。

1The shape of seed curved face and the parametric equation of the peak pointangle of the seed surface are put forward.

对内侧充种垂直圆盘排种器工作时，排种器内腔中种子面的形状进行了分析，提出种子面最高点位置角的参数方程。

Chapter 4 probes the approaches to draw out the graphs of conic sections with locus and parametric equation as well as the approaches to create the graphs of polynomials.

第四章探索利用轨迹及参数式作出圆锥曲线图形的方法，以及多项函数图形的作法。

The theory of cutting Bezier line apart is above all developed into Bezier surface whose parametric equation and separating caculation formula are coorespondingly concluded.

首次将Bezier曲线分割拓广到Bezier曲面分割，推导并给出了Bezier曲面的参数形式和它的分割计算公式。

First, the algrithm classify the measurement characteristics as point, line and surface which can be classified to conicoid and free surface. Then, this algorithm establishes the parametric equation according to various features. After that this paper brings forward the characteristic parameters utilising least square method with several characteristic points. Finally high precision probe radius compensation is carried out according to the features.

该算法首先把测量特征分为点、线、面3种基本特征（其中面特征又分为二次曲面和自由曲面），然后建立各种特征的参数方程，利用测量得到的少量特征点，采用最小二乘法拟合得到被测特征的参数，最后根据被测特征参数进行高精度半径补偿。

The macroprogram is written by using the elliptical parametric equation, then some actual work problem can be solved with the macroprogram.

在数控编程的实际应用中，常见的是直线插补和圆弧插补，没有椭圆插补，但在实际生产中，往往遇到许多椭圆的零件需要加工，如果手工常规编程就无法编制出椭圆的加工程序，为了解决这个问题，在数控编程中有宏程序可以做到椭圆的加工，本文按HCNC-21T系统（在其他系统只不过是宏程序的格式不同而已）对椭圆做内、外的加工编程举例，还在内椭圆的加工中先加工一个工艺孔，巧妙利用椭圆的参数方程来编写宏程序，用宏程序来解决一些实际的工作问题。

ISO834 and parametric equation approach are lack of pertinence. The results may be too conservative. The temperature obtained by zone model is low, so that it is not suitable for the performance-based fire protection design on this structure. Field model considers the heterogeneity of environmental temperature, and its result is close to the real fire, so that it is commended to the performance-based fire protection design on steel staggered-truss structure.

国际标准升温曲线和参数化室内升温曲线不考虑火源功率、建筑通风口等因素，缺乏针对性，分析结果偏于保守；区域模型所得温度偏低，不宜用于交错桁架结构的性能化抗火设计；场模型考虑了火源功率及环境温度分布的不均匀性，和实际火灾较接近，计算结果相对较为准确，可用于结构的性能化防火设计。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。