查询词典 rectangular cartesian coordinate system

In this paper the Datum-shift parameters are determined using the map of geoidal undulation based on Rapp's 180×180 solution and the computed values of geoidal un- dulation with respect to WGS-72 system as well as the map of geoidal undulation with respect to local geodetic coordinate system-1980 of our country.

本文利用 Rapp 180×180阶解和 WGS-72系统的绝对大地水准面差距分别同我国80大地坐标系的相对大地水准面差距相配合推算了平移转换参数。

In this paper the Datum-shift parameters are determined using the map of geoidal undulation based on Rapp's 180×180 solution and the computed values of geoidal un- dulation with respect to WGS-72 system as well as the map of geoidal undulation with respect to local geodetic coordinate system-1980 of our country.

武汉测绘学院学报，，编辑部邮箱 1981年 02期卫星多普勒；地心坐标系；转换参数；大地坐标系；大地水准面差距；本文利用 Rapp 180×180阶解和 WGS-72系统的绝对大地水准面差距分别同我国80大地坐标系的相对大地水准面差距相配合推算了平移转换参数。

This paper presents research on the intersystem prediction and analysis of electromagnetic compatibility to the radio systems positioned by the geographical longitude and latitude coordinate system and the elevation system.

本文对处于陆上局部区域内的、以经纬度地理坐标系和高程系进行定位的无线电系统间的电磁兼容性预测进行了研究，以对系统间的相互干扰情况作出预测，给解决局部区域中无线电系统间相互干扰问题的方案提供支持，以避免在系统布置、安装完成之后出现相互干扰情况而使系统性能下降，甚至失效，造成资金和时间的浪费。

Fifthly, by adopt new matrix coordinate system means, found a tricycle WMR"s kinematic model, especially the investigation in the kinematically modeling of steered wheel and non-steered wheel. At the same time, the dynamic modeling of robot"s playing football motion, consummate mobile robots system.

第五，采用新型的矩阵坐标系方法，建立了三轮式机器人的动力学模型，尤其是在导向轮和非导向轮的动力学建模方面进行了深入的研究；同时，对机器人踢足球的运动进行动态建模，进一步完善了移动机器人体系。

The key technique to realize the system such as: the establishment of electronic map database ^ the search of the best pattu gobal position, map match and coordinate alternate etc, are discussed. The database of road information and main targets which is of much benefit to the realization of the system are built to manage the information of roads and main targets.

在研究电子地图数据库的建立方法时，为了克服现有电子地图的图幅接边在接边处会出现扭曲错位、难以管理地图信息、信息量少且难以更新等缺点，采用路网数据库和物标上题数据库来管理地图上的路网信息和主要物标信息。

The method is based on a variable structure to control the SVC, wherein, the variable structure control method comprises two aspects of the unbalanced load equalization compensation and the parameter control of a PI controller, wherein, the unbalanced load equalization compensation adopts the SVC compensation susceptance computational method which is based on the synchronous rotation reference coordinate transformation of a virtual symmetrical three-phase system; meanwhile, in the stabilization control of the system voltage, the ant colony algorithm optimization method is adopted to real time adjust and to optimize the parameter kp and ki of the PI controller.

本发明公开了一种静止无功补偿器的不平衡补偿和蚁群优化方法，基于变结构对静止无功补偿器SVC进行控制，其中变结构控制方法包括不平衡负荷平衡化补偿和PI控制器的参数控制两个方面，其中不平衡负荷平衡化补偿采用基于虚拟对称三相系统的同步旋转参考坐标变换的SVC补偿电纳计算方法；同时在系统电压稳定控制时，采用蚁群算法优化方法，对PI控制器的参数kp、ki进行实时调整、寻优。

Perceiving advertising campaign in the aspect of social meaning of communication structure system, especially cogitating the interactive relationship between advertising campaign and social life system is the important coordinate when trying to manage advertising.

而从社会意义传播结构的系统视角去观照广告运动，特别是思考广告运动和社会生活系统之间的互动关系，是重新把握广告的重要坐标，也是具有中国本土特色的广告研究理论体系建构的目标要求。

At present, the data processing fashion using by the observation-aiming systems on modern tanks is based in a single turret coordinate frame. The model errors of the fire-control system become the principal errors, when the fire-control system is tracking the motorizing objects.

目前我国主战坦克的观瞄系统使用的是建立在单一炮塔坐标下的数据处理方式，基于这种数据处理方式的火控系统，在跟踪机动目标时的模型误差成为系统作战的主要误差，已经无法满足现代作战对打击机动目标的要求。

To accomplish the intelligent control of the three-axis numerical control system of the boring and milling machine tool based on IPC ,the research makes good use of the intelligence sport control card PCL-839 and PCLD-782/785 card to design the control system of the three-coordinate NC machine tool with the framework of embedding NC in PC.

为实现基于工控机 IPC 的三坐标印制电路板数控钻铣床的智能控制，研究运用PCL-839运动控制卡和信号输入输出卡PCLD-782/785，采用NC嵌入PC式结构设计该三坐标印制电路板数控机床的控制系统，以实现对该数控机床的控制。

Through coupling of computational car course 5 rank the Li Dai of the model is counted, got Li Dai counts the verdict of full order, make clear 5 rank the system that the model is strong coupling of course of a car, alternate through coordinate the system cannot solve Ou only.

通过计算车轨耦合五阶模型的李代数，得到了李代数满秩的结论，表明五阶模型是一个车轨强耦合的系统，仅通过坐标变换系统无法解耦。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。