直角坐标

Equations of SBFEM for a seepage problem are derived with a transformation from Cartesian coordinates to scaled coordinates.

通过比例坐标与直角坐标之间的转换，推导渗流问题的比例边界有限元方程。

Professional mapping, spatial coordinates of the earth and Cartesian coordinates interchangeable VC source.

测绘专业中，空间直角坐标与大地坐标互相转换的VC源代码。

5 Node Macros The macros listed in Tables 5.5.1 and 5.5.2 return the real Cartesian coordinates of the cell node, and the components of the velocity of the node, respectively.

5.5节点宏表5.5.1和5.5.2列出的宏返回单元格节点的实数直角坐标和相应的节点速度的分量。例如在移动的网格模拟中节点速度是相对应的。

The trajectory plan of welding robot is made for the purpose of realizing the predefined track by using the merits of joint space method and Cartesian space method. The realtime simulation is given.

为使机器人实现预期的轨迹运动，结合关节空间法和直角坐标空间法两种方法的优点对焊接机器人的轨迹进行规划，并给出实用的计算机仿真结果。

The algorithm GS to solve the problem of inverse dynamics based on the optimal theory is proposed, by using the numerical methods of Gill and shooting target, the optimal joint driven torques are obtained With the smooth joint trajectory motion, a fast and stable inverse dynamics method is proposed, it provides a new effective way to control the flexible manipulator The trajectory planning in the joint space and Cartesian coordinates is especially discussed In terms of kinematics of space flexible link manipulators, a sequential integration method for inverse dynamic analysis of flexible manipulators is developed The concrete results of simulations tested and verified the validity of proposed methods, and some valuable conclusions are achieved.

提出了求解基于最优理论的柔性臂逆动力学问题的GS法(Gill—Shooting method)，得到了柔性臂关节的最优驱动力矩；提出了基于光滑关节运动轨迹的柔性臂逆动力学的快速稳定方法，为柔性臂控制提供了一条新的途径；探讨了关节空间和直角坐标空间柔性臂的轨迹规划问题；研究并完善了结合柔性臂运动学的顺序积分的逆动力学方法。通过具体实例的仿真研究，验证了所提出的柔性臂逆动力学方法的有效性，得出了一些很有价值的结论。

In this chapter you will use the same concepts of graphing but now on a Cartesian grid.

在这一章中你将使用相同的概念，图形，但现在的直角坐标网格。

A method is proposed for the integrated use of conformal gridsand rectangular grids.

提出一种融合曲线坐标和直角坐标的区域网格划分方法。

Firstly, by using the function of EXCEL software and choosing the appropriate expression to calculate and get positive axis single latitude conic projection plane right-angle coordinates data table and length distortion data table about latitude.

根据实践经验，以经度97°~108°；纬度23°~34°为研究工区，用正轴切圆锥投影模型为例，介绍利用EXCEL软件中的公式对地图制图中的数据进行运算处理，求得正轴单纬圆锥投影平面直角坐标数据表，以及长度变形随纬度变化的关系数据表。

In this way, it's convenient to achieve rectangular coordinate of cam contour line and provide a new simple practilal method to its design and manufacture.

用这种方法可以方便地求出凸轮廓线的直角坐标，为凸轮的设计和制造提供了一种简捷可行的新方法。

The substance of this method is that,when oil and gas production starts declining,square root of annual oil production and accumulated oil production is a declining straight line in rectangular coordinate.

方法的实质是：油气藏产量出现递减之后，年产油量的平方根与累计产油量在直角坐标中是一条下降的直线。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。