查询词典 boundary line

Scan line is used to detect the boundary of the horizontal rim, least square estimation is applied to compute its orientation, and elastic thread techniques is proposed to approach the curve with very low curvature.

提出了扫描线测量横向边框外沿并利用最小二乘法计算其走向的方法以及用来拟合曲率极小曲线的弹性线技术。

A new implicit pressure calculation method and relevant percolation rule are introduced taking account of the advantages of methods suggested by King, Sorbie and Stenby. Simulation methods for various boundary conditions (fixed pressure or fixed flow rate) and well pattern (line drive, five-spot pattern) are presented.

多相渗流的随机渗滤多尺度模拟多孔介质的多尺度非均质性及工程上对渗流模拟空间范围的要求，使得多相渗流的多尺度模拟对于正确模拟渗流过程具有十分重要的意义。

Since the initial start of buried pipelines results in three-dimen-sional unstable heat transmission , and at initial start the temperature change of the soil around a pipeline is affected by the temperature inside the pipeline and the ground surface temperature annual fluctuation, the differential equation for heat transmission and the boundary value may be line...

埋地输油管道启输过程是三维非稳定传热问题，启输过程中管周土壤温度场的变化受管内热水温度和启输前地表面温度年波幅的影响，可将传热微分方程和边值条件线性组合成两个定解问题，用电子计算机进行数值求解，得出计算公式，以确定预热阶段管路任一点任一时刻的热水介质温度。

The paper is to prove the refraction on two kinds of medium interfaces of electric displacement line using the boundary condition of the electric field and Fermat Principle.

利用电场边界条件和费马原理证明电位移线在两种介质界面上的折射。

In chapter two, the existence of monotone and non-monotone solutions of boundary value problem on the real line for Lienard equation is studied.

第二章，讨论了Liénard系统无穷边值问题单调解和非单调解的存在性。

At present, the common numerical methods are finite difference, finite element , boundary element, integration equation and transmission line method.

目前，解决这类问题的数值方法主要有有限差分法、有限元法、边界元法、积分方程法、传输线法等。

Included are the measurements of the tooth profile deviation of a shaving cutter based on the generalized polar coordinate method, and of the helix deviation of the shaving cutter using curvature method to automatically identify the boundary points; the measurements of the tooth profile of a modified hobbing cutter, and of deviation of contact line of the hobbing cutter by means of the generalized cylindrical coordinate method; the measurement of the deviation of tooth profile of a non-linear worm .

这些测量包括：①基于广义极坐标法的剃齿刀齿廓误差测量，以及采用&曲率法&自动识别界点的剃齿刀螺旋线误差的测量；②修形滚刀的齿廓测量，以及基于广义圆柱坐标法的滚刀啮合误差的测量；③非线性蜗杆的齿廓误差测量。

Capovilla from Mexico\'s first gave the opening film of the bubble equilibrium equations and boundary conditions in a certain line tension.

Capovilla等人首先给出了在一定线张力下，开口膜泡的平衡方程及边界条件。

By making reasonable assumptions about the mechanical boundary conditions of orthogonal cutting,a slip line field model is constructed by a trial and error method,in which the influence of cutting edge roundness is considered.

对正交切削过程的力学边界提出了合理假设，用试探法建立了考虑切削刃钝圆影响的滑移线场模型及相应的速度场模型。

In 1767, the boundary between Maryland and Pennsylvania, the Mason-Dixon line, was agreed upon.

1767年的今天，马里兰州和宾夕法尼亚州间的分界线确定下来。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。