有向线段

The intersection of sweep volume with complicated surface normal is transformed into computation of intersection between triangular mesh and directed line segment.

将扫描体与复杂曲面法矢的求交问题，转化为三角网格与有向线段之间的求交计算。

Has proposed making way of the correlative function ф graph by the recessive, known, directed line segment pairs has fixed spots .

对函数图形的求作规则进行了研究，提出了由隐性已知有向线段对确定的点求作相关函数图形的方法。

Has proposed the way making the related function ф graph by the recessive known directed line segment pairs has fixed spots..

对函数图形的求作规则进行了研究，提出了由隐性已知有向线段对确定的点求作相关函数图形的方法。

By means of the plus or minus characteristic, not only simplified the position judgment between the point and the directed line segment, reduced the algorithm complexity, more eliminated drastically various unstable factors.

借助于正负性，不仅简化了点与有向线段的位置判断，降低了算法复杂性，是彻底消除了各种不稳定的因素。

For improving the algorithm, the text started with analyzing the plus or minus characteristic of a straight line, further described roundly various mutual positions relation between the point and the directed line segment and the corresponding disposing process.

为改进算法，首先从分析直线的正负性入手，进一步全面描述了点与有向线段的各种相互位置关系及相应的处理步骤。

In addition, the applications of the directional derivative and differential of the fuzzy mappings from 〓 to Ein convex fuzzy programming, the applications of the fixed point theorems of increasing fuzzymappings in fishery production and the applications of the integral over a directional linesegment of the fuzzy mappings are also studied.

另外，还给出了从〓到〓的模糊映射的方向可导性及可微性在凸模糊优化中的应用、增模糊映射的不动点定理在鱼业生产中的应用及模糊映射在有向线段上积分在获取统计数字方面的应用。

In the following, the paper lists node flux balance equation group and loop pressure balance equation group, based on law of conservation of mass and law of conservation of energy, and the relation between flux and pressure elicits, using the law of branch ventilation resistance and the relation of fan performance.

本文根据水电站地下洞室群通风系统的特点，提出了进行节点、分支划分与网络图绘制及分支阻抗计算的原则和方法，利用图论的相关理论将通风系统转化成为点和有向线段表示表示的，并且各个分支影响空气流动的因素由分支的阻抗表示的水电站地下洞室群通风网络图。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。