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1·Understand what the differences are between polar coordinates and the Cartesian plane.

了解之间的差异极坐标和直角平面。

2·So, as you do with the x-axis in the Cartesian plane, you consider a particular cell to be the origin.

因此，在笛卡尔平面使用 x轴时，考虑一个特定的细胞为原点。

3·There is no reason to presume that the equilibrium interest rate consistent with full employment is necessarily in the upper right quadrant of the Cartesian plane.

没有理由假设，与完全就业一致的均衡利率，必须处于笛卡尔坐标平面的第一象限内。

4·The hyperbolic trigonometric functions are to hyperbolae as the trigonometric functions are to circles. That is, imagine you plot these points on a Cartesian plane for all possible values of t.

双曲三角函数就是对曲线应用三角函数，也就是说，想象将这些点放在笛卡尔平面上来得到t的所有可能值。

5·A kinematically admissible continuous velocity field to the plane strain extrusion is established in cartesian coordinates, and an upper - bound analytical solution is thus obtained in this paper.

本文采用直角坐标系建立了平面变形挤压问题的运动学许可连续速度场并获得了该问题的上解析限解。

6·In this paper, the incompatible displacement functions are constructed which possess completeness in Cartesian coordinates. A pair plane quadrilateral isoparametric incompatible elements are given.

本文利用直角坐标下函数的完备性来建立等参坐标下的非协调位移函数，给出了一对在直角坐标下二次完备的四边形平面等参非协调元。

7·A Cartesian coordinates robotic system was developed to transplant tissue culture plantlets or scions from a flat plane to culture flasks in order to minimize the need of labor.

本研究设置一套直角座标机器人系统，用以扦挿移植组织培养苗至培养瓶或相关容器中，期能取代移植作业的人工，降低此一产业的人力需求。