查询词典 paraboloidal

An X-band broad bandwidth dual- polarization low side-lobe offset fed paraboloidal reflector antenna is described.

摘 要：介绍了一种宽频带双极化低副瓣天线的设计、加工方法和测试结果。

The experiment of testing a paraboloidal mirror(Φ140、f/2) with designed CGH is depicted and its test result is 0.406λ PV (peak-to-valley), 0.062λ RMS (root-mean-square).

介绍了所设计加工的双计算全息图检测Φ140、f/2凹抛物面反射镜的实验，其检测结果为：PV =0.406λ，RMS =0.062λ。

This paper describes a thermal cycling test in vacuum of antenna paraboloidal reflector, small model and specimen, made of two carbon fibre sheets and one aluminum honeycomb core and gives the approach for predi- cting the permanent distortions.

本文介绍了碳布铝蜂窝制成的天线反射器、小模型及其材料的真空冷热循环试验和永久变形的预示方法。

The half paraboloidal IRA is easy to match UWB pulse generator. The principle and radiation field of IRA is discussed with field on the spherical surface aperture.

抛物面冲击脉冲辐射天线是一种新概念的超宽带电磁脉冲辐射天线，它包括抛物面反射器、TEM馈臂和匹配电路等，半抛物面冲击脉冲辐射天线解决了与源的匹配和连接问题。

In the first part, a novel paraboloidal lensed multimode fiber has been analyzed amply in the coupling between the high power single emitter broad area diode laser and multimode fiber, which has been verified in the experiment. In the second part, the coupling between the high power single emitter broad area diode laser and cylindrical lensed multimode fiber has been discussed detailedly.

主要通过计算机仿真抛物面型光纤微透镜和柱状楔形光纤微透镜与大功率宽发射域半导体激光器的多模光纤耦合效率，并在实验中进行验证，提出了提高大功率宽发射域半导体激光器与多模光纤耦合效率的新方法。

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 split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。