查询词典 spectrum

"Our report reveals that there has been under reporting of revenue for the purpose of payment of revenue share, and underpayment of licence fee and spectrum fees," said the executive summary of the report, seen by the FT.

"我们的报告显示，由于费用按收入比例支付，该公司一直在低报收入，并少交了许可费和频谱费，"英国《金融时报》见到的报告摘要写到。

It is shown that although statistical distribution of relative velocity between two atoms has no impacts on the line shape of LICET spectrum, it has certain impacts on the peak value of collision cross section.

分析表明，两原子之间相对运动速度的统计分布虽然不影响激光感生碰撞截面的谱线线型，但对碰撞截面的峰值大小有一定的影响。

The result indicates that1 (1) The life-form spectrum of garden plants accords with subtropical climate.

结果表明，武钢工业区园林植物生活型基本符合亚热带气候的生活型谱，所应用的园林植物比较丰富多样，主要为乡土树种，分属69科146属229种。

What the ES3 does perfectly is reproducing the entire musical spectrum with a tremendous speed and lifelikeness.

当我把音量转小后，ES3的声音听起来还是保持着同样的响度，但是更加的耐听和激情。

In this project, we study in details the light curve and spectrum of gamma-ray bursts.

本项目对伽马暴的光变曲线和能谱进行深入研究，定量解答了M。

The spectrum of SN1987A contains more detailed information than its bolometric light curve.

超新星的光谱比它的热光度曲线包含了更详细的信息。

Based studies were done on radiation spectrum, voltage to current character and modulation property of white LEDs when they are used as optical transmitters. Then the configuration and systematic design techniques are concentrated concerning white LED lighting source communication with numerical analyses and computer simulations done as well as high speed modulation techniques, visible light receiver design and means to alleviate inter symbol interference along with background noise problem.

在对白光LED用作通信光源时的光谱特性、伏安特性、调制特性等物理特性做深入分析的基础上，重点研究了白光LED照明光源通信系统的组成结构和系统设计，进行了数学计算分析模拟，并设计出了白光LED高速调制电路和可见光接收电路，并就如何削弱码间串扰和背景光噪声对通信系统的影响进行了讨论分析。

Choose the 890nm infrared LED as the light source after compared the capabilities of incandescent lamp/tungstic lamp and LED/LD and also think about the selective absorbability of water; it has strong points such as constant light intensity,long life, narrow light spectrum,etc, and use the infrared light with 890nm wavelength to decrease the influence of optical-absorption matters.Choose the photosensitive diode which suitable to the LED which we choosed after compare the capabilities of light sensitive resistor, photocell, photosensitive diode and phototriode. Both of these make up the photoelectric system of turbidimeter.

通过比较白炽灯／钨灯和发光二极管／激光二极管的各项性能指标，考虑到水对光线具有选择性吸收作用，选择890nm的红外发光二极管作为浊度仪的发光器件，其有发光光强稳定、寿命长、发光光谱窄等优点，且用波长大于800nm的红外光进行测量可以大大减小水中光吸收物质的影响；通过对光敏电阻、光电池、光敏二极管和光敏三极管等光敏器件的各项性能的分析与比较，选择响应时间短、输出特性线性度好的光敏二极管作为光接收器件，并与红外发光二极管相配套，构成浊度仪工作的重要系统——光电系统。

Novel grad attenuation was designed based on the size and intensity distribution of tested field for not exceeding limen of CCD and avoiding the spectrum information loss at tested field edge.

为防止CCD接收光强过饱和及待测场边缘光谱信息的损失，根据待测场的大小和光强分布设计了梯度衰减片，再通过窄带滤波片获得了待测场的光谱信息。

The research carried out an experiment of extracting water from inland limnetic wetlands using TM remote sensing imagery based on many arithmetic,and concluded that spectrum classification was the best among the area accuracy index,extraction accuracy index and visual effect index,the following was single band threshold and vegetation index method,however,multi-band relationship and water index method was the worst.

研究基于TM遥感影像，运用多种方法针对典型内陆淡水湿地的水体信息进行了提取实验，通过对实验结果的分析得出：在面积的准确性、提取的准确度以及视觉效果3种指标下，光谱分类法较其它方法效果要好，其次为单波段阈值分析法与植被指数法，较差的是多波段谱间关系法与水体指数法；影响提取效果的主要原因是湿地水体提取不够完全，这是由影像的分辨率及湿地特殊的水文条件所造成的，采用像元分解及多源遥感数据融合技术将成为提高水体提取精度的重要手段。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。