截线与“内错角”有关。
A transversal is associated with "alternate interior angles".
在第一个针孔处多留一截线用来打结！
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.
接下来，我们的任务就是将平面与拼接曲面的有效部分相交所得截线参数化。
Then our task is to parameterize the intersection of and the valid part of for some fixed .
由截线及杠杆定律分析可知，低碳铁素体成核并长大，剩下含碳量高的奥氏体。
Tie-line and level-law calculations show that low-carbon ferrite nucleates and grows, leaving the remaining austenite richer in carbon.
探讨了截线抽样法用于浅水型淡水湖泊调查的可行性和有效性以及要注意的问题。
Feasibility, validity and other problems of line transect survey method in shallow fresh water lake were also discussed.
解析几何中圆锥截线的一条封闭曲线，包含了与两个定点(焦点)之距离呈等值增加的所有点。
Closed curve, one of the conic sections of analytic geometry, consisting of all points whose distances from each of two fixed points (foci) add up to the same value.
对坐标转换的基本概念和基本公式做了研究，给出了法截线曲率半径、子午线弧长和底点纬度的解算公式。
Research the basal concepts and formulas of coordinate conversion, the formulas of the radius of curvature in a normal section, the meridional length and the latitude of pedal are given.
提出的内凹的盘铣刀铣可加工凹曲面又加工凸曲面。通过改变刀盘曲轴线与曲面的截线和刀盘半径有相同的曲率和曲率导数。
This paper presents a new method in which the disc cutter always has the same curvature and the curvature differential with that of the surfaces being machined.
通过X射线衍射和扫描电镜对国内外铬酸镧电热元件的结构特征进行了分析，利用定量金相截线法对试样的晶粒尺寸分布进行了统计。
The structure of internal and Japan ones were studied by X ray and SEM. The grain distribution was statistically measured by quantitative metallography method.
看起来像是断成两截的USB线的创意优盘。
Creative USB flash drive looks like broken in half USB cable.
目的测量下颌角整形截骨线周围骨质的厚度，为手术提供解剖学依据。
Objective To measure the mandibular thickness relative to the osteotomy line of mandibular angle plasty so that to provide the anatomical basis for operation.
系统地论述了林分蓄积量调查的线截抽样原理和方法、并在针叶林和阔叶林中进行了验证。
The principle and method of line intersect sampling for surveying stand volume were introduced in this paper. and tested in coniferous forests and broad-leaved forests.
基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。
Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.
它为确定截交线的投影范围，准确地绘制截交线，提供了理论依据。
This offers a theoretical ground for setting the region of projection and constructing accurately the lines of intersection.
结论曲面断层摄影各部位变形失真率不同，这为指导临床工作，如颌骨畸形矫正术中截骨线位置的确定。
Conclusion Distortion at the different parts of the orthopantomograph is different, therefore, the result should be beneficial for the clinicians in determination of bone cut of orthognathic surgery.
研究了采伐剩余物调查的线截抽样原理和方法。
The principle and method of line intersect sampling for estimating logging wastes are introduced in this paper.
本文以一般位置平面为辅助截平面，用求迹线方法，在一个视图求作两单曲面偏交交线。
With the ordinary camber used as auxiliary cross section, the line of intersection of two biasing single cambers is worked out in a view with the method for line of nodes.
本文介绍了图解截交线的三种方法，中心投射法、平行斜投射法、弧线投射法。
Three approaches to the graphic representation for lines of intersection are introduced in this article, namely, central projection, parallel skew projection and arc line projection.
提出一种将辅助平面旋转某个特定的角度图解正椭圆锥面截交线的方法。
The paper presents the graphic method of solution of the intersection of right elliptic cone with plane by rotation of auxiliary planes at a certain Angle.
在特定条件下，椭圆锥与平面的截交线为圆。
Under definite conditions, the intersection of an elliptic cone with a plane is a circle.
竹竿就是鱼杆，大头针就是鱼钩，缝纫机线就是钓鱼线，芒草扫帚抽一根出来切出一截就是鱼漂，而牙膏壳就烧制成铅锤。
The rod was a bamboo pole, the hook was converted from a paper pin, the string was cotton sewing thread, the float pulled from a broom, and tooth-paste casing boiled and shaped into a plummet.
竹竿就是鱼杆，大头针就是鱼钩，缝纫机线就是钓鱼线，芒草扫帚抽一根出来切出一截就是鱼漂，而牙膏壳就烧制成铅锤。
The rod was a bamboo pole, the hook was converted from a paper pin, the string was cotton sewing thread, the float pulled from a broom, and tooth-paste casing boiled and shaped into a plummet.
应用推荐