查询词典 paraboloidal coordinates

The algorithm is developed through VC++ language, and the form-finding analysis is performed for saddle-shape cable-net, a paraboloidal cable-net and double-layer tensegrity structures.

编程实现了算法，并对马鞍形索网旋转、抛物面索网和双层张拉整体结构进行了找形分析研究。

In the active stressed lap polishing technology, a special computer controled pilishing machine and a 450mm diameter active stressed lap have beeen developed, and in the experiment a paraboloidal mirror with F ratio 2 and diameter 910mm has been successfully polished.

主动抛光盘磨制技术研制了应用主动抛光盘的计算机控制的磨镜机，研制了一块直径450mm的主动抛光盘，并试验磨制了一块φ910毫米的F/2抛物面镜。

Then the single layer spherical, cylindrical, elliptic paraboloidal reticulated shell and double layer cylindrical reticulated shell are calculated on the large deformation stability respectively, which show the application of the development system on the large deformation stability analysis of space bar structures.

用所开发的系统对单层球面网壳、圆柱面网壳和椭圆抛物面网壳以及双层柱面网壳进行了大变形稳定性计算，说明了所开发系统的可应用性。

For example, reflecting telescopes are still built with paraboloidal primary mirrors, which have interchangeable flat diagonal mirrors and hyperboloidal secondary mirrors, with a focuser installed both at the Newtonian focus and the Cassegrain focus.

例如，同样是抛物面反射望远镜，然而安装了可切换的45度反射镜与双曲面副镜（注：分别对应于典型的牛顿与卡塞系统），且在牛顿和卡塞焦点都装有成像设备。

By analyzing the relationship between the deforming precision of Active Lap and corresponding force generated by moment actuators, a new structure of Active Lap for manufacturing a Φ1800mm, F/1.5 large paraboloidal mirror is obtained. Its progressed performance has been proved with 60 units micro-displacement sensor array.

通过分析能动磨盘的变形精度与对应的驱动器产生力大小的关系，优化设计出适用于Φ1.8m、F/1.5主镜加工的磨盘结构，改善的性能在60路光栅位移传感器阵列上得到验证，新结构磨盘已应用于Φ1.8m、F/1.5抛光面主镜的加工工程中。

The authors have for the first time come up with the conception of a unitsection separate node point heat resistance and heat capacity four dimensional heat network for a solar energy collector system and on this basis set up a heat collection process dynamic emulation model for the solar energy collector system with a cavity absorber trough paraboloidal mirror.

在首次提出太阳能集热器系统单元段分节点热阻、热容网络——四维热网络概念基础上，建立腔体式吸收器——槽形抛物镜太阳能集热器系统的集热过程动态仿真模型。

A standard accessorial reflecting mirror was incorporated into the beam path of an interferometer to build up a autocollimating system for measuring the aspheric wavefront aberration of paraboloidal, ellipsoidal and hyperbolic mirrors with the method of aberrationless point.

为了检测抛物面、椭球面和双曲面镜，在干涉仪工作光路中加入一个标准辅助反射镜，组成自准直系统，采用干涉法中的无像差点法实现对非球面波像差的检测。

The Sky-Watcher paraboloidal mirror reflectors and all Dobsonian models feature a four-arm, secondary-mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss.

抛物面镜面反射和所有DOB机型采用了四臂中央副镜支撑（ 0.5毫米厚），以减少衍射峰值和减轻光损失。

Paraboloidal catadioptric omnidirectional imaging systems.

水平场景无畸变的折反射全景成像系统。

OBMorph adopted a paraboloidal mirror to vary the incident angle, the wave-plates to modulate phase retardation, a reference optical path to stabilize the optical source, and a flow-injection system to drive bio-sample into the bio-chip. In order to having high precision in the ellipsometry subsystem of OB-Morph, it adopt a 0.4μm accuracy servomotor to control the stage that carried the right angle mirror and to control the variation of the incident angle.

本文中所建构之OBMorph检测系统中，椭偏仪技术是采用相位调制架构设计，开发出利用抛物面反射镜与球面反射镜组合而成之控制入射角改变的光机，加上波板以完成相位调制动作；并以一参考光路做为校准光源之机制，以及设置流道系统提供生物检测之用。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。