| 1. | The equations are written in rectangular coordinates .
这些方程是在直角座标系中写出的。 |
| 2. | In fig. 6-1(c), the motion of a particle is referred to by a rectangular coordinate system .
在图6-1（c）中，质点的运动是用直角坐标系来描述的。 |
| 3. | Rectangular coordinate type potentiometer
直角坐标式电位差计 |
| 4. | In fig . 6 - 1 ( c ) , the motion of a particle is referred to by a rectangular coordinate system
在图6 - 1 （ c ）中，质点的运动是用直角坐标系来描述的。 |
| 5. | For overcoming nonsmooth of temperature field , temperature field equations in subdomains are built respectively in rectangular coordinate and in cylindrical coordinate . based on the numerical simulation algorithm in this paper , numerical results for temperature field are given and analyzed
基于我们构造的三维温度场数值模拟算法，给出了变压器运行过程中温度场在空间与时间分布的数值结果，并对所得到的数值结果进行了分析。 |
| 6. | The mechanism is based on the 4 - axis rectangular coordinate system . the driven mode of x - axis is proportional pneumatic - servo control system ; y - axis is driven by a digital ac servomotor ; z - axis is driven by a linear cylinder ; the driven mode of the axis of r is same to that of y - axis
X轴采用基于比例伺服技术的气动驱动； y轴采用全数字交流电机伺服驱动； z轴则采用直线气缸驱动；而r轴采用与y轴相同的驱动方式，同时其前端安装了真空吸盘，用于抓取工件。 |
| 7. | The contents of the course include the elastic problems and associated solution procedure ; the basic concepts and assumptions of elasticity ; the solution of a planar elastic problem defined in a rectangular coordinate ; the matrix expression of basic equations of a planar elastic problem ; the solution of a planar problem defined in a polar coordinate ; the basic equations and solution procedure of a three - dimensional elastic problem ; bending of a plate ; and the variational principles of energy
本课程的主要内容包括:弹性力学问题及其求解思想;弹性力学中的基本概念及基本假定;弹性力学平面问题的直角坐标解答;平面问题基本方程的矩阵表示;平面问题的极坐标解答;弹性力学空间问题的基本方程及其解法;薄板的弯曲;能量变分原理等等 |
| 8. | This paper is composed of two parts including 5 chapters . in the first part ( including chapter 2 ^ 3 ) , this paper explains an improved geometry - model method to eliminating eclipse shadow , using satellite imaging theory and projection theory to convert plane rectangular coordinates into rectangular spherical coordinates . otherwise , through studying eclipse ' s shape and size , this paper uses a math - function - model to eliminating eclipse shadow
本文共有五章，主要内容分为两部分；第一部分包括第二、三章的内容，利用可见光云图成像原理以及点的投影法，将平面云图投影到三维直角坐标的球面上，对用于云图阴影订正的原几何模型法加以改进，得到改进的几何模型法，并进行日食阴影订正实验；本文还利用数学函数模型法，通过研究月球在地球表面投射阴影的形状及其受影响程度，从另一方面进行可见光云图日食阴影的订正实验研究。 |
| 9. | Under the circumstance that the camera is moving , the tracking rectangular coordinates are founded , and the relationship between the tracking rectangular coordinates and the forecast rectangular coordinates is given . the angle control formula of the camera & pan - tilt - device system is educed with its vision coordinates , which provides theory basis for moving vehicle tracking
在摄像机运动情况下，建立了运动车辆跟踪坐标系，并得出了运动车辆跟踪坐标系与预测坐标系之间的转换关系；通过摄像机-云台系统所采用的视觉坐标系，推导出了摄像机-云台系统转动的角度控制公式，为运动车辆的跟踪提供了理论基础。 |
| 10. | If applied experiential formula mechanically to calculate the dynamic moment of the tri - eccentric butterfly vavle , its errors for the results would be larger . the paper , by virtue of the postulate of flow with fixed constant , eddiless of ideal liquid , calculated laplace equation by finite difference method in rectangular coordinates , gained pressure distribution on the butterfly disc section , thereby figured out its dynamic moment under each opening angle and the method was feasible for calculating dynamic moment of symmetry or not , designed the program and described the curve of dynamic moment . finally , the paper infered their laws
采用经验公式来计算三偏心蝶阀的动水力矩，误差比较大，本文根据三偏心蝶阀的结构特点，利用理想流体的定常、无旋流动的假定，用有限差分法在直角坐标系中求解拉普拉斯方程，得到蝶板截面上的压力分布，从而计算出蝶板在各个开度下的动水力矩，设计出了求解的程序，给出了程序运行的结果并进行了数据处理从而得到了动水力矩曲线，总结了它的变化规律。 |
