基本曲线

Constructing triangle surface which interpolates the boundary curve and cross-boundary slopes on a triangle is the basic problem in computer aided geometric design, computer graphics and so on.

在三角形域上构造对边界曲线和跨界导数插值的三角曲面是计算机辅助几何设计和计算机图形学等领域中的基本问题。

General keyword is searching a result a lot of, but the index is very high, but below the circumstance with search very few result, having one share go up, these word search bridge are very big really, but because be to brush,go up, buy discharge to brush for instance, be a search, but essential nobody goes ordering search kill, wear so kind of word be done, but did not come basically discharge, wear kind of word it is one of words with the biggest difference, what do so is necessary not quite, means of settlement: Examine an index while, see a curve distributing, tone arrives one year, wear kind of term is average the near future just comes up!

一般的要害词在搜索结果很多，但是指数很高，但搜索结果很少的情况下，有一部分是因为人为因素刷上去的，这些词搜索梁的确很大，但是由于是刷上去的，比如买流量刷的，是搜索了，但是根本没人去点搜索结果，所以着类词做上去了，但是基本没来流量，着类词是差别最大的词之一，所以做的必要不大，解决方法：查看指数的同时，看看曲线分布，调到一年的，着类词一般都是近期才上来的！

Based on the involute's basic principles and theoretical formulas, input the involute's formulas of cartesian coordinates into the equation editor, accordingly create the precise involute of gear's contour. Based on the formula of helical gear's parameters, accurately create a curve of tooth profile. Create the chraceristics of helical gear by ordering of swept blend and array.

依据渐开线生成的基本原理和理论公式，在方程编辑器中输入渐开线的笛卡尔坐标方程，从而生成精确的齿轮轮廓渐开线；根据角变位斜齿轮各参数的计算公式，精确创建了齿廓曲线；利用扫描混合和阵列命令创建斜齿轮的轮齿特征。

It is self-priming centrifugal pump performance curve of the fundamental.

它是自吸离心泵的基本的性能曲线。

We propose a closed surface parametrization method based on a new theory of curves and surfaces.

曲线曲面是计算机图形学和计算机辅助几何设计中的基本研究对象。

By using the mathematical method of curve integrals,it derives the mathematical formula to calculate the cross-section ductile coefficient of RC ring section member.

从钢筋混凝土正截面承载力计算时的基本假定出发，建立了环形截面上各种应力图形的函数表达式，利用曲线积分的数学方法，推导出计算钢筋混凝土环形截面构件截面延性系数的数学公式。

This program segment to be able to draw a complete graph of the cobweb diagram, other sites basically did not provide for the study of economic control issue is a useful feature programs.

详细说明：此程序段能完整画出所要图形曲线的蛛网图，其它网站上基本没有提供，对学习经济控制问题是个很有帮助的的功能程序。

Both the a-axis and ab-plane dip towards the downstream , the dip angles of the a-axis are low and concentrated, being 7—8°,the ab-plane dips at 7～21°, and the a-axis has more preferred dip of fabrics than the ab-plane; the peak of the grain-size frequency distribution curve of deposits in the Lushan area is in the range of 4 and 5 φ;The quartz sand grains are subangular and have well-developed conchoidal fractures, parallel striatio ns, upturned cleavage flakes,"V"-shaped holes and siliceous deposits.

摘 要：庐山第四纪泥砾沉积物的砾石组构特征表明，砾石岩性与山体基岩基本一致，砾石的等体积球径较小，加权平均砾径较中值砾径大，分选系数大于1，分选性差，φ值相对较小，平均为0.66，F值相对较大，在2左右，F/φ比值介于2.75～4.75，ρ值集中且较小，为22.75%～37.75%，砾石以棱角、次棱角状为主，磨圆较差；a轴和ab面都倾向沟谷下游，a轴倾角集中且较小，为7～8°，ab面倾角为7～21°，a轴较ab面具有更为优势的组构倾向；沉积物粒度频率曲线在4～5Φ范围内表现为峰；石英砂颗粒为次棱角状，贝壳状断口发育，具平行擦痕、上翻解理片、V形坑和硅质沉淀。

In the direction perpendicular to the rolling plane convex curve was continuous basic cylindrical or conical roller to prevent roller and raceway contact points to the stress concentration.

在垂直于滚动方向的平面内呈连续的微凸曲线的基本圆柱形或圆锥形的滚道，以防止在滚子与滚道接触处产生应力集中。

To solve the problem above, we develop a new method to filter signal by performing nonlinear transformation of coordinate and filter of function.

其实现的基本思想是：将一曲线分段，求分段的重心，然后将分段中心的函数值赋给重心。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。