查询词典 spectrum distribution

But the uniform distribution of the spectral energies can be found in the Power Spectrum Density Function of Eurocode 8 code.

而Eurocode 8给出的设计地震动在所关注的频率范围内能量分布比较均匀。

The distribution spectrum and spectral intensity were calibrated by means of mercury lamp standard tungsten lamp corresponding.

用标准汞灯和He-Ne激光器，对测量系统的光谱分布进行了校准；用标准钨带灯，对测量系统的光谱相对光强分布进行校准。

Analyses on content, distribution and spectrum of thyroglobulin and determination of TG content in serum

甲状腺组织中TG分布、TG带谱分析及血清TG含量检测

The large particles follow unimodal distribution in Sc,and the width of spectrum reaches about 1500 μm.

Sc云系的大粒子不同层的平均谱很相似，为单峰分布，谱宽达到1500 μm。

The quantity computed is the expected clutter power at the output of any specified range gate by the method of integrating reflected energy between constant Doppler loci in range-gate circles with a model of sum and difference antenna gain pattern for APAR. Base on the analyzing of APAR terrain clutter spectrum, Rayleigh, Correlated Log-Normal and Weibull distribution terrain clutter of APAR general pulse signal was simulated with the method of zero memory nolinearity transform.④The Doppler frequency of target echo is simulated on video frequency in this dissertation.

该软件采用了用C语言建立框架结构，而在程序高重复部分和有运算速度要求的地方，用汇编语言编写具有高并行能力程序的方法，不仅满足了系统高运算速度和实时性的要求，也使得软件系统结构模块化，代码具有良好的维护性和重用性；③对机载相控阵雷达HPRF、MPRF的和、差通道地面杂波功率谱进行了较为全面的研究，通过建立由四个子波束构成的机载相控阵雷达杂波和差波束天线方向图数学模型，选取体现高度线杂波的修正的地面后向散射模型，以载机平飞为例，采用沿距离门——等多普勒线区域积分的方法，得到了杂波功率谱，并利用零记忆非线性变换法实现了机载相控阵雷达常规脉冲情况下瑞利分布、对数正态分布和韦布尔分布地面杂波的模拟；④提出了采用在视频上对目标回波的多普勒频率进行模拟的方法。

Former spread spectrum system always work with a fixed coefficient,and all the nodes are equalization,it must be avoidless that the distribution of the source of wireless bandwidth is improper.

摘 要：以往的扩展频谱技术都是以固定的扩频比进行通信，系统将所有节点同等看待，势必造成无线带宽资源的分配不合理。

Raman spectrum, UV-Vis spectra, IR, NIR and XPS spectra were used to characterize the material. The result indicates that there is a conjugative effect between MWNT and bromine, which induces the change of electron distribution on the MWNT surface. It increased the car- rier density and the electrical conductivity of MWNT became higher.

通过拉曼光谱，紫外可见光谱，红外吸收光谱，近红外吸收光谱和X光电子能谱等方法研究，结果表明：溴与多壁碳纳米管之间存在共轭作用，使多壁碳纳米管表面的电子云分布发生了变化，导致空穴载流子的产生，增加了载流子浓度，提高了多壁碳纳米管的导电性能。

The author analyzed total oxygen content, nitrogen content in steel made by typical process and the inclusion composition, change rule, morphology and distribution qualitatively and quantitatively by image analyzer, big sample electrolysis, SEM and energy spectrum analysis. The results showed that final inclusion form was small granule MnS, calcium aluminate, a small quantity of silicate and lumpy Al2O3. By intensifying deoxidation alloying process control in converter, argon blowing and slagging control and desulphuration and calcium reduction operation in refining course and overall-protection casting, the oxygen content was reduced by 20% above averagely, nitrogen content was reduced by about 10% and the inclusion content was reduced by 30%.

通过全O、N分析，夹杂物图像分析仪、大样电解、扫描电镜及能谱分析，定性和定量分析了典型工艺钢种钢中全O、N含量和工序过程夹杂物的构成、变化规律及形态、分布，分析钢中最终夹杂物表现形式主要为小颗粒的MnS、铝酸钙、少量的硅酸盐和块状Al2O3，通过强化转炉脱氧合金化工艺控制、精炼过程吹氩与造渣控制及脱硫和钙处理操作、全程保护浇注，钢水中O含量平均降低20％以上，N含量降低10％左右，铸坯中夹杂物含量降低了30％。

Based on the establishment of the intensity attenuation relation of Jiangxi Province and its adjacent areas by analyzing isoseismic line data, we develop the attenuation relations for horizontal peak ground acceleration and response spectrum of the areas by selecting the west of USA as the reference region and using the transforming method. In comparison with the seismic motion attenuation relation of eastern China, the result better represents the features of historic and modern earthquake damage distribution in the area, and may contribute to seismic safety evaluation, earthquake damage prediction and fast loss assessment.

在利用江西省及邻区的地震烈度等震线资料建立该区地震烈度衰减关系的基础上，以美国西部为参考地区，转换得到了相应的水平向基岩峰值加速度与反应谱衰减关系，并与中国东部地区的地震动参数衰减关系进行了对比，其结果更加符合该区历史和近代地震震害分布的地域性特点，可进一步应用于地震安全性评价、震害预测、损失快速评估等研究。

Based on the establishment of the intensity attenuation relation of Jiangxi Province and its adjacent areas by analyzing isoseismic line data,we develop the attenuation relations for horizontal peak ground acceleration and response spectrum of the areas by selecting the west of USA as the reference region and using the transforming method.In comparison with the seismic motion attenuation relation of eastern China,the result better represents the features of historic and modern earthquake damage distribution

在利用江西省及邻区的地震烈度等震线资料建立该区地震烈度衰减关系的基础上，以美国西部为参考地区，转换得到了相应的水平向基岩峰值加速度与反应谱衰减关系，并与中国东部地区的地震动参数衰减关系进行了对比，其结果更加符合该区历史和近代地震震害分布的地域性特点，可进一步应用于地震安全性评价、震害预测、损失快速评估等研究

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。