The static performance of EP-EPS cushioning packaging materials renders non-linear curve, the basic shape is similar to the tangent curve.
EP -EPS缓冲包装材料的静态性能呈现非线性曲线的特性，基本形状与正切曲线相类似。
Then actually there are ways you can use basically differentials and constrained partials to figure out what the tangent vector to the curve is and so on.
然后，可以用微分关系,或受约束的偏微分来表示,曲线的切向量，就是这样了。
A tangent is a straight line that just touches a curve, so the concept of "running the tangents" is to run the shortest distance possible by running straight from one curve to the next.
切线是一条直线，刚好接触到曲线，所以跑切线是从一个弯道跑到另一个最短的距离。
That is how we reformulated it. That means we take our curve and we figure out at each point how big the tangent component I guess I should probably take the same vector field as before.
这是另一种形式，它意味着,要求出每点处向量在切向量方向的分量,我还是用之前那个向量场吧。
What I do at any point is project F to the tangent direction, I figure out how much F is going along my curve and then I sum these things together.
我所做的就是把F投影到切向量方向上，得出F沿着曲线的值,然后再把这些加起来。
And, in some cases, for example, if you know that the vector field is tangent to the curve or if a dot product is constant or things like that then that might actually give you a very easy answer.
例如，在某些情况下，如果已知向量场与曲线相切，或者内积是一个常数等等，那么结果将会很简单。
So, the velocity vector is going to be always tangent to the curve.
速度向量总是与曲线相切的。
Crosshairs appear to indicate the perpendicular and tangent lines that extend from any point on the curve.
光标仅沿着曲线移动，十字准线显示指定的垂足和切线扩展到曲线的任意一点。
The access is tangent to the curve and the Spaces refer to the interior, while the "public space" of the living room, being transparent, sees outside with a view to the thicket.
访问是相切的曲线和空间是指内地，而“公共空间的客厅”，是透明的，看到外面的灌木丛，以查看。
The problem of attaining the tangent equation of a certain point on a quadratic curve is basically solved in plane analytical geometry.
平面解析几何对“求过二次曲线外的点所引曲线切线的方程”的问题，未给出一般的方法和公式。
At any knots, the nearly arc length are precise for the resulting nearly arc length parametric curve, and it has the unit tangent same as that of the real arc length parametric curve.
所作近似弧长参数化曲线在插值节点处，近似弧长是精确的，并且具有与精确弧长参数曲线同方向的单位切矢。
By piecewise polynomials and the Ramberg-Osgood three-parameter equation fitting the stress-strain curve, the expressions of the tangent and secant modulus are derived.
分别介绍了用分段多项式和朗培其一奥斯古特三参数方程拟合应力应变曲线并求切线模量和割线模量的方法。
The second category is the demand curve tangent problem.
第二类问题是求曲线的切线的问题。
By the method of sawing and saw blade swing taking the line of saw-teeth of saw blade's working side for centre, saw blade always works toward the tangent of sawing curve.
采用锯机连同带锯条一起以带锯条工作边锯齿齿尖连线为中心作回转摆动的方法，实现带锯条始终沿着锯切曲线的切线方向进行锯切。
This paper presents two kinds of new methods for setting out circular curve: free angle and tangent length method.
介绍了测设和检验圆曲线的两种新方法：任意角夹角法和任意切线长支距法。
The procedure used to define the derivative has a geometric interpretation which leads in a natural way to the idea of a tangent line to a curve.
微分的定义步骤有一个几何解释，最简单的观念就是一条曲线的切线。
It adopted not only direction information of GPS but also the tangent heading information taken from the database to get actual train position on curve segment.
针对曲线区段的定位，还提出了一种基于GP S方位角和轨道信息的同向切线定位法。
Methods in the area of incision, made a incision vertical to the tangent of local curve of expanding area, implanted the expander through this incision.
方法在切口部位，沿扩张区域局部轮廓切线的垂直方向切开，植入扩张器。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
To solve the problem about determinant and solution to tangent line of curve of second order in Analytic Geometry with viewpoint and methods of Higher Geometry.
利用《高等几何》的观点、方法解决《解析几何》中的二次曲线的切线的存在性与求法问题。
In this paper, an approximate method of using three tangent arcs to substitute the involute gear profile curve is put forward.
提出用圆弧来代替渐开线齿形的近似方法，实现了渐开线齿轮三维实体造型的直接编程生成技术。
The existing algorithms include equivalent left and right curve Angle by definition, normal section line method and tangent projection etc.
有关的算法有根据定义的左右曲面角相等，法截面法和切向投影等。
An algorithm for constructing rational spline closed curve which is tangent to the given polygon is described.
描述了一种与给定多边形相切的有理样条曲线的算法。
An algorithm for constructing rational spline closed curve which is tangent to the given polygon is described.
描述了一种与给定多边形相切的有理样条曲线的算法。
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