查询词典 rectangular cartesian coordinate system

And 0.4～0.6 respectively for the induction coil with round crosssection and rectangular cross-section; The magnetic flux density of coil made with round pipe was nonuniform, especially near the inner wall of coil turns that caused a fluctuation of electromagnetic pressure on the surface of liquid metal and had a bad effect for forming a sample with uniform cross-section and smooth surface; The system of screen and restraint magnetic field not only had an efficient effect on restraining the electromagnetic stirring and stablizing meniscus, also caused the conecial periphery of melt to be vertical; The position of top and S/L interface of melt had a direct effect on the meniscus shape. The meniscus profile varied from cone-shaped through column to cucurbituceous shape with the increase of top height or decrease of S/L interface.

对圆形截面、矩形截面感应圈来说D/H分别取0.7～1.1，0.4～0.6较为理想；对多匝感应圈来说，在匝间处存在漏磁，易引起熔体表面起伏不平，这种现象在用圆铜管绕制的感应圈中较为明显；屏蔽—抑流系统的加入可以消除电磁搅拌，使熔体稳定性增强，同时可使形态呈锥形的熔体侧面变得垂直成为理想形态；熔体上液面、固/液界面的选位直接影响成型形态，上液面升高，熔体形态经历锥形→柱形→葫芦形的转化，固/液界面下降则经历锥形→葫芦形的转变。

By using a wide field stereo-microscope and a CCD video camera system,the axial liquid flow and dryout pointin vertical rectangular capillary microgrooves heat sink were observed and measured under pure evaporation heat transfer conditions.An experimental study of the influences of microgroove geometric parameters and working liquids on wetting height was conducted.

利用宽视场体视显微镜和CCD摄像系统对纯蒸发换热情形下竖直放置的矩形毛细微槽群热沉中的液体沿微槽槽道方向的流动情况和干涸点高度进行了观察测量，并对微槽几何尺寸、工质等因素对润湿高度的影响进行了实验研究。

Furthermore,by using the periodic orbit theory,we calculate the Fourier transform ρ of the quantum spectra of the two-dimensional rectangular billiard system.

另外，利用周期轨道理论，我们计算了二维矩形弹子球体系的量子谱的傅立叶变换ρ。

This paper advances the circuits of step motor plane rectangular coordinates automatic position system controlled by single chip computer.

设计出以步进电动机拖动为核心的平面直角自动定位系统电路，其中包括单片机输出接口线路、光电耦合线路、驱动线路、直流电压源电路等。

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。

As engineering activities related to groundwater are getting more and more complicated,seepage problems in arbitrary rectangular coordinates system can be often met.

随着与地下水有关的工程活动的逐步复杂化，任意直角坐标系下潜水渗流问题日渐多见。

It is concluded theoretically that when the signal pickup microphone is placed on one of these points, a corner in a rectangular room for example, any increment in open-loop gain of the secondary system will multiply the damping of reverberant sound field.

只要把次级系统的信号拾取传声器置于这类特征点上，比如在矩形空间中三面相交的墙角处，则次级系统开环增益的增大，就相当于增大了整个混响声场的阻尼。

Based on the entity intersection sorting algorithm, the function of semiautomatically generatingthe die assembly graphics parts graphics is realized; And the rectangular and circularwindows clipping and overlaying, the Boolean operation of 2D closed graphics and localenlarging tools is developed, producing an initial appraticable die CAD system.

按照工厂要求，开发的冲裁模CAD系统应当具备以下功能：具有良好的用户界面，实现在层SOLID上线型为CONTINOUS的IJNE，ARC，CIRCDe，toLYLINE组合图形实体中自动追踪出链式图形，求出包络矩形参数，进而实现模具系列零件参数化图形生成和自动尺寸标注，最后通过覆盖剪裁装配消隐生成模具装配图。

Through adjusting the site of metallic block in the rectangular cavities, the system's syntonic frequency gets altered.

利用等效电路法和高频场分析软件与粒子模拟软件分析了器件的性能。

Absctrct: Objective This study was designed to investigate the stress distribution in the surface of tooth and peridental tissues and the initial displacements of tooth in the maxillary under two orthodental simulating force rectangular archwire with T loop and II class elastic used clinically by the 3-D finite element method so as to clarify the biomechanism of orthodontic tooth movement and component of optimal orthodontic force system.

目的：通过有限元分析法比较两种工况下上颌各牙齿的位移趋势和牙根及牙周支持组织内的应力分布规律，为临床治疗中合理选用矫治力系统以便有效的控制牙齿移动类型提供可靠的理论依据。

"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。