查询词典 planar

The chaotic planar attitude motion of a ligid spacecraft on an elliptic orbit in the gravitational field with air drag and internal damping and its control are studied. The necessary condition of occurring chaos is established by Melnikov's method. A numerical example is presented.

研究了同时存在大气阻力和结构内阻尼的椭圆轨道上平面天平动航天器的混沌姿态运动及其控制，应用〓方法给出了出现混沌的必要条件，用数值算例进行了验证。

A 2D PIC model was used to simulate the PIII process for a planar target. The simulation results in one whole pulse show that the sheath expands with a decreasing speed and the sheath shape would change form elliptically cylindrical to circularly cylindrical. The dose distribution of ion implantation in the target surface is not uniform, and the concentration depth profiles of retained dose are considerably different, in different positions of the target.

本论文采用二维粒子模拟方法对等离子体离子浸没注入技术进行了模拟研究，在一个完整脉冲时段内，等离子体离子浸没注入平板靶的模拟过程表明：等离子体鞘层的扩展先快后慢，鞘层形状由椭圆柱形向圆柱形演化；注入离子剂量在靶表面的分布是非均匀的；在靶的不同位置注入的离子在改性层中的浓度深度分布有显著差别。

On the basis of the research on the model of the planar enveloping hourglass meshing surface, the software is developed in which the design environment of enveloping hourglass worm pairs is parameterized.

在平面包络环面啮合型面的精确建模等研究的基础上，进行了包络传动副啮合副参数化设计环境的软件开发。

The main tops of research and creative points of the dissertation are as follows: The gear surface equations are deduced strictly from the space meshing analysis of planar enveloping hourglass meshing surface.

主要研究工作及创新点如下：论文在对平面包络啮合成型运动进行空间啮合分析的基础上，进行了平面包络环面蜗轮副啮合齿面方程的严格推导，进行工具母面坐标系的统一化处理，并利用计算机技术，对平面包络环面蜗轮副啮合型面进行整体理论实体造型，建立了啮合型面的网格化整体理论模型。

We think, the company has the business of planar media operation of forestall feature for Shanghai in the epigenesis of transition, advocate battalion and prospective development are clear.

我们认为，公司在转型之后成为了上海具有垄断特征的平面媒体运营商，主营和未来发展清晰。

The chaotic planar motion of a magnetic rigidsatellite in a circular orbit near the equatorial plane of the earth isinvestigated in the present paper.

讨论地球磁场中非自旋磁性刚体卫星在近赤道平面圆轨道上平面天平动的混沌问题。

Two novel spherical helical antennas can be designed by projecting the planar equiangular spiral antenna onto the surfaces of hemisphere and partial sphere. Their radiation properties are analyzed by the moment method with curved basic and testing function, and the curves of the VSWR, gain, polarization and pattern vs.

将平面等角螺旋天线投影到半球面和部分球面上，可得到两种新型球面螺旋天线，采用基于曲线基函数的矩量法对其辐射特性进行了分析，给出了天线的驻波、增益、极化及方向图等随频率变化的曲线。

C. Escher and Japanese planar design sponsorFustian. And it analyses the logo and connotation to show us it is a bridge whichbetween looker and framer.

通过这篇文章让我们明白，应该对错视的基本原理和分类有清晰的认识，对错视图形的类型及它的表现力和艺术感染力有准确的把握，对平面设计中错视图形的趣味性有更深层次的理解。

Planar graphs also play an important role in colouring problems;to motivate such problems,let us return to our"road-map"graph,and let us suppose that Shell,Esso,B.

平面图在着色问题中还起着重要的作用；为了生动地说明这一问题，让我们回到路线图，并假定Shell、Esso、B。

However, most research results were on the ideal condition that geographical space was a homogeneous one, and almost all spatial analysis methods are according to the metric of planar Euclidean distance, its drawback is quite obvious.

但是，目前多数研究都假设地理空间是一个均质空间，采用基于平面欧氏距离的空间分析方法，这是有局限的。

And if officials on the take are not parroting the opinions of these companies, what can we suppose the money they receive is for?

如果受贿的官员不鹦鹉学舌般地复述这些公司的看法，那他们所接受的钱又能用于什么目的呢？

Love them, and love you too, Pitcher.

爱他们，也爱你，投手。