查询词典 directed line segment

The definition and properties of line segment arithmetic are given,which is a special situation of point set arithmetic,but easily calculated.

文章给出了线段算术的定义和性质，它是点集算术的特殊情况，但更便于计算；提出了线段Bézier曲线的概念，就是把区间Bézier曲线中的长方形换成满足一定条件的线段，这里的线段是指该线段上所有点的集合；给出了线段Bézier曲线的性质及其细分算法。

The DNA samples were compared to a DNA segment of Astrid von Medinger, a descendant in the female line of Stéphanie de Beauharnais, who would have been Kaspar Hauser's mother if indeed he had been the hereditary prince of Baden.

把他的DNA样品跟阿斯特丽德·范·米丁格的DNA片段对照。米丁格是斯蒂芬妮皇后的母性线上的后代，假如卡斯帕·豪泽尔真的是巴登国的继位王子，那么斯蒂芬妮皇后就应该是他的母亲。

The line segment connecting the center and any point of a circle is called the radius.

连接圆心和圆上任意一点的线段叫做半径，半径一般用字母 r 表示。

A line segment that joins the center of a circle with any point on its circumference.

圆半径：将圆心与圆周上任一连接起来的线段

It is shown that the penetration rate is higher with smaller incidence angle. The central segment of the flight line is 1.6 times of the right most and left most sections, and 1.3 times penetration rate of next right and next left sections.

实验结果显示，当雷射入射角越小时，穿透率越高，反之亦然，航带中间分带穿透率约是面向航向最右五分之一及最左五分之一分带的1.6 倍，是由右方起第二个五分之一及第四个五分之一分带的1.3 倍。

Firstly, the new watershed transformation using extended chain code was introduced. Then a new region merging method for solving over-segmentation was discussed. Experiments show the new algorithm can segment the road regions correctly.The structured road edges can be represented by straight line or segmented lines.

首先在分析经典分水岭变换算法的基础上，提出了一种新的基于扩展链码的快速分水岭变换算法，使得分水岭变换更利于实时应用；然后通过对过度分割产生原因的分析，提出了新的基于区域灰度和位置约束的过度分割解决方法，并在道路区域分割应用中取得了良好效果。

Chord:a line segment that joins two points on a curve.

弦：将两点用曲线连接起来的曲线段。

Chord:a line segment that joins two point s on a curve.

弦：将两点用曲线连接起来的曲线段。

As the rapid development of highway,the widening of easement curve segment is more and more at a premium,but the calculation of coordinates and length of inside and outside line is very complex,however,the introduction of this content is very little .

随着高速公路的快速发展，缓和曲线段的加宽越来越受到重视，但是加宽后的内外边线坐标和曲线长的计算非常麻烦，关于这方面的介绍也非常少，故通过理论计算，提出内外边线的坐标和曲线长的计算公式，具有一定的参考价值。

The point of a line segment or curvilinear arc that divides it into two parts of the same length.

中点一条线段或一段弧上的一点，该点将此线段或弧平分为等长的两部分

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。