截线

基于复杂截线的NURBS双向蒙皮造型方法

NURBS Bi skinning surface modeling method via complex curves

因此提出：构造Sweep曲面是否一定需要用活动标架来确定截线的位置？

A problem is arisen : can we describe the Sweep surface to avoid using the moving frame ?

针对基于传统加工方式的离心泵水力CAD软件设计结果在叶片曲面造型及数控加工方面存在的问题，提出了一种沿轴面截线进行造型的新方案。

A new modeling method of twisted blade is presented in accordance with the shortcomings of traditional method in pump impeller design when modeling and NC manufacturing the surface of blade .

为了获得较高的效率，所设计的E类负载网络由短截线构成，可以匹配E类负载电阻至标准电阻且抑制高至5阶的谐波。

The proposed Class-E load network is composed of short-stub , which matches the optimum load resistance to the standard resistance and facilitates harmonic suppression of up to 5th order for maximum efficiency .

PIN二极管开关展宽频带的方法一般是把PIN二极管结合进短截线滤波器，使PIN二极管在反向偏置时作为滤波器的组成部分，以展宽开关在传输状态下的频带；

The usual method to broaden the bandwidth of the PIN diode switch is combining the PIN diodes with stub filters : when under reverse bias , the didoe is part of the filter , the transmission bandwidth is broadened ;

LM2钢经1050℃快速加热淬火后，基体晶粒尺寸可细化至4.2μm以下，碳化物平均截线长小于0.32μm。

Through rapid heating and quenching the grain size of LM_2 steel may be fined down to 4.2 μ m , and its mean intercept length of carbide particles is < 0.32 μ m.

为减小造型误差，提出了新LOM方法，即沿过分层板中点造型曲面Z向法截线的切线切割分层板。

A new LOM process , in which the slice sheet is cut along the tangent of normal section line in z-axis direction , is proposed to reduce the theoretical manufacturing error and remaining material quantity .

根据精度要求，通过将胎顶、胎底轮廓和花纹沟槽侧壁斜截线离散为若干点，并应用加权BSC曲面拟合算法，构造出了型腔侧面参数方程。

After dispersing the spatial profiles and the bevel cut lines of lateral wall into mass datum points based on the required accuracy , parameter equation of the lateral surface was fitted with BSC surface .

计算出造型曲面的切平面位置、法线与分层平面的夹角、Z向法截线的曲率和曲率半径，实现优化分层。

Adaptive slicing is realized by the calculation of the position of tangent plane of modeling surface , the angle of between the normal section line and the slicing plane , the curvature of normal section line in z-axis direction and radius of curvature .

三轴椭球法截线的曲率半径

Radius of Curvature of Normal Section on Ellipsoid with Three Axis

采煤机螺旋滚筒最佳截线距的探讨

Approach to optimal line spacing for cutting picks of mining spiral cylinder

具有拟平面法截线子流形的某些性质

On some properties of Submanifolds with pointwise planar normal sections

二次代数曲面平截线不变量完全系统

Invariant Complete System for Flat Section of Quadratic Algebraic Surface

微带径向短截线基于知识的人工神经网络模型

Knowledge-Based Artificial Neural Network Models for Microstrip Radial Stub

我学到了带短截线和不带短截线的字体，

I learned about serif and san serif typefaces ,

关于椭圆抛物面圆形截线的研究

The Study on Circular Transversal of Elliptic Paraboloid

渐开线齿廓的桃形环面截线逼近

Approximation of involute profile by peach-shaped ring section

截线问题，二维旅行问题，途遇障碍的旅行问题。

Stick Breaking Problem , Two Dimensional Travel Problem , Travel with a Barrier Problem .

圆截线平面公式的应用

Application of Formula about Circular Cross-Section

提出了一种实用的规则矩快速算法&截线段法。

Chapter three puts forward an efficient fast algorithm for regular moment , which is named line segment method .

在带线环行器中心加并联开路短截线构成双Y结环行器。

Double Y-junction circulator is constructed by applying shunt open-circuited stubs in the center of a stripline simple junction .

横坐标或纵坐标相等两点的截线与直线交点精度的研究

Study on Precision of Intersection Point between Two Straight Lines through Equal Two Points in Horizontal or Vertical Coordinates

用一对在贴片两端的短截线来调谐天线的圆极化性能。

A pairs of tuning stubs are used to tune the circular polarization performance . Prototype antennas were made and tested .

作为应用，本文构造了一类以双圆弧为横向截线的直纹曲面，包括其特殊情形双圆弧锥面与双圆弧柱面。

As an application , the surfaces that consist of straight line are given , where tho cross-sections are bieircular arcs .

线粒体平均截面周长和平均截面积增加；比表面、嵴膜密度及嵴平均截线长减少。

Mitochondrial average circumference and average area increased , while specific surface , the cristal membrane density and average cristal length decreased .

级联配置的优点包括没有未端接的短截线，并且配置非常容易扩展。

The advantages of the cascade configuration include the fact that there are no unterminated stubs and the configuration is easily expandable .

在得到器件的最佳负载阻抗和最佳源阻抗后，就可以有的放矢的进行输入、输出匹配电路设计。根据最佳阻抗的特点本文选用了双短截线匹配电路；

Secondly , choose and design the match circuit of two parallel open-circuited microstrip according to the characteristics of the optimum impedances .

在此基础上开发了一个用于设计短截线阻抗匹配器的程序，它完全可以取代传统的施密特圆图法。

A program for stub tuner design is developed with which the traditional Smith chart method can be replaced for the design purpose .

发现钢的韧脆转化温度（50%FATT）与马氏体板条束截线长度呈线性相关；

It has been found that the ductile-brittle transition temperature ( 50 % FATT ) varies linearly with the mean intercept of martensitic packets .

提出了一种判别曲面凹凸性的新算法，该方法利用微分几何法截线的性质进行判别。

This paper presents a new algorithm for distinguishing concave-convex quality of surface , which uses the property of normal transversal in differential coefficient geometry .