直角

The concept of exponential transformations of rectangular Cartesiancoordinates is introduced, showing that a plane curve is more frequently expressed by a unionof four or fewer quadrantal equations defined uniquely in the respective quadrants whichthe curve covers and are therefore quadrant invariant, then the Fermat curve s with someof their geometric properties are formulated.

引入直角笛卡儿坐标幂变换的概念，说明一平面曲线是较经常地用4个或更少的象限方程的并集来表示的；这些象限方程是在曲线所在的各个象限中惟一定义的，因而是象限不变的。然后列出费马曲线的方程，并简述了费马曲线的一些几何性质

A quadrilateral has four equal margins and four right angle.

正方形有四条等边和四个直角。

There are four equal lines and quadruple right angles in the square.

正方形有四条等边和四个直角。

Reciprocal theorem for non-linear elasticity with finite displacements in rectargular cartesian coordinates is established in this paper and reciprocal theorems for bending of thin plates with large deflections are given.

建立了直角坐标系有限变形非线性弹性力学的倒易定理并给出了大挠度弯曲薄板的倒易定理。

The three side surfaces of that sphenoid solid are parts of the surfaces of the mentioned cones and, as a result, the said sphenoid solid can rotate in the internal surface of the corresponding cone, when the corresponding cone axis or the corresponding semi - axis of the three - dimensional rectangular Cartesian coordinate system rotates.

上述楔形体的三个侧面是前面提到的锥形的组成部分，于是，当相应的锥形轴线或者相应的三维直角坐标系的半轴转动的时候，上述楔形体可以在其锥形的内表面转动。

of Images,Method of Separation of Variables in Rectangular Coordinates

简单掌握镜像法及直角坐标系中的分离变量法。

The agent's dynamics and the given curves are all described in a fixed system of rectangular coordinates.

智能体的动态和指定路径都是在固定直角坐标系下描述的。

The formula for transforming the measured coordinates into rectangular coordinates and generating a correct 3D image is given.

测量得到的目标三维坐标并不是在直角坐标系下得到的，给出了坐标转换的公式。

The equations are written in rectangular coordinates.

这些方程是在直角座标系中写出的。

The formula to transform the measured coordinates into rectangular coordinates and generate a correct 3D image is given in this chapter. Finally, the simulation results are given.Chapter 8 is the summary of the dissertation.

测量得到的目标三维坐标并不是在直角坐标系下得到的，文中给出了正确重构目标三维图像所需要坐标转换的公式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。