查询词典 Wavelength

In order to determine the contents of Vitamin C,Nitrate,and Nitrite in varied Zingiber officinale and evaluate the quality of Zingiber officinale,ultraviolet spectrophotometer is used to measure the absorbency of Zingiber officinale at special wavelength.

为评价不同处理方法对生姜中V itC、硝酸盐和亚硝酸盐含量的影响，通过紫外吸收分光光度计在特定波长下的吸收值分别对鲜姜、煮姜和泡姜进行测定。

Fiber grating coupler has good wavelength selection characteristic of optical fiber grating as well as multiport advantage of fiber coupler. These features make it easy to realize allfiber optical add/drop multiplex.

光纤光栅耦合器具有光纤光栅良好的波长选择特性和光纤耦合器的多端口特点，易于实现全光纤的光波分插复用。

On the one hand, the wavelength region of SPV response for the interband transition is obviously widened; the intensity of SPV response enhances with increase in ethanol vapor pressure, especially in the visible spectral range.

在给定的实验条件下，SPV响应的强度同样随P〓的增加而增大。而且，在可见光区增加的幅度明显大于其它区域。

First, by taking into account not only interband effects but also intraband effects, such as carrier heating , spectral hole burning , two-photon absorption and ultrafast nonlinear refraction and the interaction of control pulse and signal pulse in SOA, the relationship between the performance of TOAD (including flatness of switching window, chirp of output signal and extinction ratio of the demultiplexed signal) and the parameters of input pulse (including the wavelength and power of control and signal pulse) are studied.

首先，在考虑到由于带内效应，诸如载流子热效应、谱烧孔效应、超快非线性折射效应和双光子吸收效应而导致得非线性增益压缩效应以及控制光和信号光相互作用情况下，研究了TOAD的各性能参数，包括开关窗口的平坦性、输出信号的啁啾特性、解复用信号的消光比特性等与输入控制光和信号光的波长及功率的关系，在此基础上对TOAD性能进行了优化。

These techniques are based on the ionisation with a single UV photon with a wavelength of l?

这些技术基于 l？123.8nm(10 eV)的波长与一个单紫外光子电离。

Compare the relative frequency and wavelength of musical notes. Use 330 m/s as the speed of sound and the following frequencies for the musical scale.

如果声音在空气中的传播速度为330m/s，各音阶的频率如下表所示，试求出邻近音符的频率差及每个音符的波长。

Having recourse to the cloud model, baaed on the large quantitative of FY-2C images, consisting of five wavelength of spectral data, which were acquired during the period 2006 to 2007 over Asia-Pacific area, the main radiance features of different rain types such as rainstorm, light rain.

最后以2006年7月6日FY-2C中国分区图所示地区对应的FY-2C卫星云图进行降水类型分类为实例，得到不同降水天气对应的云图辐射亮度值特征，并利用分类结果对实况云图进行降水天气的判别，结果表明该方法对大暴雨天气的判别效果良好。

Some related specilist point out ,the modernists dependent upon mobile phone more and more , the mobile phone is not the same as the common ionization radiation ,the wavelength of electronmagnetic wave emanated by the mobile phone is 900MHz to 1800MHz. Although, the DNA has not been damaged by it to certain degree yet , but this microwave can radiate to the depth of encephalic 4 to 6cm . stimulate the water molecules and cells moving ,result in the temperature of corresponding tissue raising 0.1c, induce the fever reflection such as the headache,disfunction of blood supply in brain, cauterized feeling on the skin of face ,ear as well as the skin around the ear etc .also induce the non-fever reflection such as the changing of sleeping style ,raising blood pressureand and disfunction of recognization etc.

0有关专家指出，现代人越来越离不开手机，但不同于普通的电离辐射，手机发射的电磁波波长为900MHz--1800MHz，虽然尚没有达到损伤DNA的程度，但此种微波可以辐射深度达颅内4--6cm，刺激水分子和细胞发生运动，导致相应组织温度上升0.1c，引发如头痛，脑供血障碍，面部皮肤烧灼感及耳部及耳周皮肤烧灼感等热反应，而且可以引起诸如睡眠方式的改变，血压升高，认知功能障碍等非热反应。

It is indicated that: 1 at evidence level of 0.01, the chaffs dynamic RCS presents chi-square distribution at S-band and X-band; 2 the density of chaff cloud would decrease with time, which will result in lower RCS; and 3 with increasing of frequency and decreasing of wavelength, the coherence effect between different chaffs would get less, which will result in weaker fluctuation.

结果表明，当显著性水平为0.01时，该箔条云在S波段和X波段的动态RCS服从χ^2分布；箔条云形成之后，箔条密度随着时间的推移而下降，导致其RCS减小；随着频率升高而波长减小，箔条间互耦效应将减小，箔条云RCS的起伏也将减小。

X-ray ,which is excited from the X ray tube, has one wavelength scope, that is energy scope. According to the elements to be analyzed, X ray is choused by filter, and reach the sample. Atoms in the sample will absorb the X ray energy and the decay to emit the special x ray. The X ray will be collected by the collimator into the detector active area, and transferred into electron signal, the signal also will be processed in to energy spectrum and related concentration data by pulse processor with software.

从X光管通过激发Excitation发射出来一定波长范围也就是说一定能量范围的X射线，结合所需要分析的目标元素，使用滤光轮选择对应的能量范围的X射线，照射到样品上，样品中含有的元素原子电子受到激发会发射出其特征的X射线，同样通过Collimator准直器收集一定孔径的X射线进入到检测器Detector，检测器将感应到的X射线转换为电信号，电信号经过脉冲处理器Pulse Processor结合软件进一步将电信号转换成为能谱图以及相关浓度信息。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了