三角形

In this paper difference equation of motion fr om one point to another point on the earth is derived from the geodesic equation on the earth and spherical trigonometry formulas. Some difference track formul as of a maneuvering object are also given.

以大地椭球三角形模型为基础，利用地球表面二点间最短路径的大地线方程和球面三角形的有关公式，建立了由地球表面一点运动到另一点的差分运动方程，同时也给出了在进行航向机动时的差分运动轨迹。

In this paper differ ce equation of motion fr om one point to another point on the earth is derived from the geodesic equation on the earth and spherical trigonometry formulas. Some difference track formul as of a maneuvering object are also given.

以大地 椭球三角形模型为基础，利用地球表面二点间最短路径的大地线方程和球面三角形的有关公式，建立了由地球表面一点运动到另一点的差分运动方程，同时也给出了在进行航向机动时的差分运动轨迹。

Results The observation of inverted phase contrast microscope showed that the majority of cells were polygonal and triangular in the experimental group, and were spindle-shaped in the control group at 7 days.

结果 诱导培养7 d 倒置相差显微镜观察显示，实验组以多边形和三角形细胞居多；对照组细胞多呈长梭形，少数为小圆形或三角形。

Possibly the use of a triangular mesh would have made the description simpler: that is to say, it might be that we could describe the surface more accurately with a coarse triangular mesh than with a fine square mesh, and so on.

也许用三角形格子的网会使描述更为简单：也就是说，用较稀的三角形网格也许比用较密的四方形网格能够更精确地描述这个表面，如此等等。

It can reach the submaxilla edge in part of old people; The bottom forms one curve following the eye lower eyelid; The medial terminal line is nasolabial; The lateral terminal line is from the junct of malar bone and malar arch to the angulus oris inferolateral or submaxilla edge.

皮下脂肪有一个近似三角形增厚的区域，三角形的尖位于口角外下方，约平下颌角平面，在部分老年人可达下颌缘；底部沿眶下缘呈一弧线；内侧界为鼻唇沟；外侧界从颧骨和颧弓交界到达口角外下方或下颌缘。

Triangular elements are formed based on the criterion which is the ratio of area to sum of squares of the three sides.

这种方法根据三角形的面积和周边平方和的比率这个准则来构造三角形。

The advantages of this new method are:(1) The field conductivity distribution function is fitter the actual condition than tradition methods:(2) On the condition of triangle elements cut of field, making the calculation speed increase in large degree than tradition methods.

与单元电导率重建算法相比，节点电导率重建算法的优点有：(1)使场域电导率分布函数更符合实际情况，克服了传统算法中对电导率作离散化处理的缺陷；(2)当场域采用三角形单元剖分方式时，在场域的剖分密度保持不变的情况下，可以大大提高重建计算的速度；(3)在场域采用三角形单元剖分方式时，场域的剖分密度可以比以前加大一倍，在不降低重建计算速度的前提下，可以改善重建计算的精度；(4)由于重建的是所有节点的电导率，避免了先前单元电导率重建图像中"阶梯"状边缘和"锯齿"状边缘的出现，明显地改善了图像的视觉效果。

"For example, the triangle inequality states that the sum of the lengths of any two sides of a triangle is greater than or equal to the length of the remaining side."

例如，三角形不等式的陈述是：一个三角形的任两边长之和一定大于或等于第三边的长度。。

The research of the triangle geometric inequality has obtained very rich of the outcomes. This paper studies mainly some new linear triangle geometric inequalities, focusing on the linear geometric inequalities which are known, and it also includes some conjectures of the author.

三角形中的几何不等式研究已取得了非常丰富的成果，本文主要围绕已知的线性几何不等式进行研究，给出三角形中一些新的线性几何不等式，并包含了作者的某些猜想。

Then, in the procedure of triangulation, we introduce the concept of front splitting and discontinus increasing, so that the procedure can be used to form triangular elements within muti-connected domains with arbitrary boundaries and nodes without any regularity.

然后，在将内部结点和边界结点连成三角形的阵面法中提出了生成阵面增长和分裂的概念，使得该方法能够适应于结点疏密程度变化很大的任意边界内的三角形网格的生成，并能够自动处理多连通域问题。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。