这就是为什么，这个线积分，有着完美的定义，但却不能对它使用格林公式的原因。
And so that's why you have this line integral that makes perfect sense, but you can't apply Green's theorem to it.
如果不喜欢计算线积分，可以通过增加一条线积分让曲线封闭起来，然后就可以用格林公式来计算了。
Or, if you really don't like that line integral, you could close the path by adding some other line integral to it, and then compute using Green's theorem.
用格林公式计算…，只是计算…，让我们忘记…，应该是，算沿闭曲线的线积分值，可以通过二重积分来算。
To compute things, Green's theorem, let's just compute, well, let us forget, sorry, find the value of a line integral along the closed curve by reducing it to double integral.
格林公式是另一种可以,避免计算线积分的方法。
So, Green's theorem is another way to avoid calculating line integrals if we don't want to.
不管哪种形式，都把线积分和二重积分联系在一起，来看看，能不能通过化简得到昨天的公式。
No matter which form it is, it relates a line integral to a double integral Let's just try to see if we can reduce it to the one we had yesterday.
要检测未与一个顶点对其的一个点右侧的交点数量，首先使用水平线与一个线段(Xi)相交的坐标公式。
To detect the number of intersections to the right from a point that is not aligned with a vertex, start with the formula of the coordinate where the horizontal line intersects a segment (Xi).
文中指出，以往的一些研究者对数据采用线性拟合，只适用于特定的地区，特定的层位，而抛物线公式可以具有普遍的适应性。
It is pointed out that some researchers 'linear fitting of velocity data is only applied to a particular area or a particular formation while the parabola formulas have wide adaptability.
给出了一种线接触弹流问题中油膜厚度的理论计算公式。
A theoretical formula for computing the film thickness in line contact EHL problems is derived.
根据接触悬挂系统中的接触线振动方程，推导了接触线应力的均值和方差的计算公式。
Vibration equations of contact wires were used to derive the formulae for calculation of mean and standard deviations of stresses.
但这招经常很有用，这个公式有时候反过来也可以用，比如你有一个面积分，但是你想，把它变成线积分的时候也可以用的。 。
Butt sometimes it is useful. Sometimes it is also useful backwardS because , actually, you have asurface integral that you would like to turn into a line integral.
所有公式使用条件与高斯扩散模型相同，可用于直接求取任意浓度等值线精确的时、空位置及其特征点位置。
This modeling system has the same conditions as Gaussian diffusion model, and can calculate any concentration isoline's rigor time space location and specific points location.
本文以齿轮磨削为例，利用齿轮啮合原理建立了Y7125磨齿机加工的坐标系，推导出了磨齿啮合时的接触线公式。
This paper is taking gear grinding as example, use gear engagement principle to establish the coordinate Y7125 gear grinder, deduced line formula for gear grinding engagement.
通过将裂隙之间的交线看作为内部边界，推导了多裂隙相交时的边界单元法公式。
Supposing that the intersection of multi-group fractures is treated as the internal boundary, a boundary Element Method of fracture network seepage flow is obtained.
采用该公式计算的三线系数与现场调查分析法所得结果基本一致。
The trilinear coefficients derived from this calculation formula basically agree well with those obtained from field survey method.
基于遭遇概率理论，推导三线系数的计算公式。
Based on the theory of encounter probability, the formula for calculating trilinear coefficients is deduced.
本文利用山东省及其邻区14个地震的37条等震线拟合山东地区地震烈度衰减公式。
The formula of seismic intensity attenuation fitted by using 37 isoseismal lines of 14 earthquakes in Shandong and near area.
介绍了三角活塞旋转发动机的工作原理，提出了气缸型线的创成方法和计算公式。
This paper introduces the operating principles of the triangle piston circulating engine and puts forward the methods to create model line of cylinder and calculating formula.
矫正后的线色散率公式可直接用于汇编计算机自动寻找谱线位置的程序。
The corrected formula can directly be used to work out the computer program of automatic seeking spectra's places.
引用的抛物线芯棒及孔型设计公式可供参考。
The formulas introduced for design of the parabolic mandrel and pass are worth referring to.
本文推导了均匀和梯度介质中的等时线公式并计算了二维均匀和梯度介质中等时线的几何特征。
In this paper we derive the formulas for the isochrones in homogeneous and gradient media, and give some numerical resul.
本文在这两种方法的基础上提出用样条函数拟合纸上定线中的离散点，并给出公式推导和示例。
On the basis of these, this paper uses mode function to imitate the disperse dots, and give formulas and examples.
在经典理论及公式的基础上利用特征线数值插分方法对飞板运动规律进行研究。
On the basis of classic theory and formula, the flier plate action rule was first studied with the method of the numerical difference in characteristic line.
讲了传输线的原理、理论和应用技术，有详细的公式推导。
Stresses the transmission line theory, the theory and application of technology, a detailed formulas.
给出了防雷线防雷效果的计算公式。
Finally it gives also the formula for calculating the protection effectiveness of lighting protection wire.
对各型线几何抽速和面积利用系数公式中的重要变量进行了讨论。
The important variables in the formulas of geometric pumping speed and coefficient of used area are discussed.
介绍了螺旋焊管成型器内压辊斜置小辊线接触辊型的设计方法（经验公式设计法）。
The article introduces the design methods of contact roller of internal press roller of forming machine of SSAW pipe mill(experience formula design).
介绍了螺旋焊管成型器内压辊斜置小辊线接触辊型的设计方法（经验公式设计法）。
The article introduces the design methods of contact roller of internal press roller of forming machine of SSAW pipe mill(experience formula design).
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