查询词典 Base Band

The stealth warplane for the microwave radar usually have complicated structures with the coating of wave absorption. On the base of calculation and modeling of the geometrical structure of the warplane in real size, the HF RCS of the air crafts under two different polarizations in different direction have been calculated with the FDTD. The result shows that the above mentioned stealth warplane have the obvious characterstics of frequency resonance, polarization and the relatively large RCS in HF Band 10-30dBm2, which can be used as the theoretical reference for selection of working frequency for sky wave OTH Radar and it also means that the sky wave OTH radar has good capability of anti-stealth targets quantitatively.

对微波雷达具有隐身作用的飞机，其形体较为复杂且表面涂敷有强吸波材料在对一种具有隐身几何外形结构实际尺寸飞机进行计算建模的基础上，文中采用FDTD技术得到了两种极化状态下该飞机无涂敷时不同方向上的短波雷达截面RCS值其结果显示了这种隐身几何外形飞机在短波波段有明显的频率谐振特性、极化特性和较大的RCS10-30dBm2，可为天波超视距雷达在选择工作频率时提供理论参考，并定量地说明天波超视距雷达具有较优的反隐身目标能力

The geometry structures have been optimized by semiempirical method AMI, on the base of this, the electronic properties and energy band structure of typical polymers were performed by EHMACC. The influence of photo-electricity on PPV-like electroluminescent polymers substituted by alkyloxy and cyano were discussed.

采用半经验AM1方法优化体系的几何结构，在此基础上，对典型的聚合物采用EHMACC程序计算能带结构，讨论烷氧基和氰基取代对PPV类电致发光聚合物光、电性质的影响。

Considering the technology difficulty in satisfying direction finding accuracy and resolving angle ambiguity,the same time in defined space for ultra-band antiradiation missile seeker,theories of direction finding by phase interferometer and resolving angle ambiguity by double base line are simply introduced.

针对反辐射导弹导引头超宽带测向系统中，在较小的体积内难以同时保证测向精度和解模糊的技术难题，介绍了相位干涉仪测向原理和参差双基线解模糊方法及其原理，并结合反辐射导弹导引头的具体应用情况，提出了一种基于虚拟基线解模糊方法。

Leaves 6-8 in a cluster, band-shaped ,70-80cm long, 2-3cm wide, acuminate at apex ,equitant at base, conspicuously articulate.

假鳞茎近球形，直径2~5cm ，叶6~8枚从生，带状，长70~80cm ，宽2~3cm ，先端渐尖，基部相对合抱，关节明显。

Leaves 7-8 in cluster, broad-band-shaped, thin-leathery to 90cm long, usually 2-3cm wide, acuminate at apex, equitant at base, entire.

附生兰。假鳞茎粗壮，常椭圆形，稍扁，叶7~8枚从生，宽带状，薄革质，长达90cm ，通常宽2~3cm ，顶端渐尖，基部对合而互抱，全缘。

It is found that,in a first-order differential Raman spectrum,almost all noise peaks are confined within a narrow horizontal band-like region with the base line going through its middle,whereas thesignal peaks shoot up and down much far beyond the region.Based onthis property,a new peak searching method with the aid of first-order differentiation is suggested.In this paper,a R_spectrumpeak labelling program for SPEX 1403 laser spectrometer with DMIBcomputer is reported.The result of peak labelling sho...

作者提出了用一阶导数谱辅助求 Raman 光谱峰值的新方法，较好地解决了谱峰与噪音的识别问题；编制了 SPEX_(1403)激光 Raman 光谱的标峰程序，具有10种不同大小尺寸的绘图功能、9种不同的字号供标峰选用，操作分为自动、半自动和手动三种方式，具有用于图注、实验条件说明的打字，存、取及复制标峰谱图等功能，克服了一般标峰过程中常见的弊病，标峰效果满意。

It suggests that for the same circumstances (3.5MHz frequency-division duplex, 3.5GHz band), adding subchannelization, diversity and space-time coding to a base station could increase the coverage range from 2km to 9kma twentyfold increase in coverage and, potentially, in subscribers.

文中提出，对相同的环境(3.5-MHz频分双工、3.5-GHz频带)，在一个基地台中增加子讯息通道化、多样化和空-时编码(Space-time coding)可以把覆盖距离从2公里提高到9公里，覆盖率增加20倍，这意味著潜在用户也增加20倍。

This includes board band base pay structure scheme, piece work incentive scheme, monthly bonus scheme and year end bonus scheme.

其中包括宽带结构的基本工资方案，计件奖金方案，月度奖金方案、终奖金方案。

This includes board band base pay structure scheme, piece work incentive scheme, monthly bonus scheme and year end bonus scheme.

其中包括宽带结构的基本工资方案，计件奖金方案，月度奖金方案、年终奖金方案。

The low material cost as well as the high product stability is two important factors to design the antenna of Bluetooth headset. Base on the HFSS simulation results, the meander line monopole antenna is applied for the frequency band 2402MHz~2480MHz of Bluetooth headset to design its antenna. The characteristics of the different meander line monopole antennas as compared under there different frequency bands.

本篇论文针对蓝芽系统的无线耳机天线，以节省材料成本以及增加产品稳定性为考量因素做为设计天线重点考量因素，依据应用曲折型单极天线模拟结果於蓝芽频段2402MHz~2480MHz之天线设计测试，并与不同曲折样式之天线在不同频宽进行性能比较。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。