查询词典 spectral

In this paper,according to the polytropic spectral characteristics and physicochemical characteristics of neodymium,the effect of neodymium on color generation of discolour glaze was systematically probed,the reason and mechanism of neodymium discolourment in glaze were elaborated,so as to be helpful to the development of discolour glaze and its theoretical research.

根据氧化钕独特多变的光谱特征及物理化学特征，探讨了钕对变色釉呈色的影响，阐述了其在釉中的变色原因及其机理，对变色釉的开发和理论研究有一定指导意义。

Effect of spectral leakage in discrete Fourier transform on frequency, amplitude and phase estimates of multifrequency signals is studied.

研究了离散Fourier变换中存在的谱泄漏效应对多频信号的频率、幅值和相位估计精度的影响。

Discrete fast Fourier transform has been widely applied to signal spectral analysis and can figure out the entire bandwidth spectrum of a signal.

离散快速傅里叶变换算法在频谱分析中得到了广泛的应用，这种算法得到的计算结果是在整个频段上的频谱信息。

The last drilling results indicates seismic Spectral-Deconversion imaging technology to research time-space disciplinarian of aggradations unit and foundation of aggradations mode, estimate of discriminability reservoir thickness and prediction of mul-laminated sand-clay.

其预测结果反映出河道空间演化规律，刻画出辫状河道平向宏观展布特征，对研究区井位整体部署、局部调整具有重要指导意义。

In this article, on the foundation of FM-CDMA system, we mainly do the profound analytical study on the technology of modulation and demodulation, spread spectrum and dispread spectrum and spectral structure of the output system.

本文在提出该系统的基础上，主要对该系统中的调制解调技术、扩频解扩技术和系统输出的频谱结构做了深入的分析研究工作。

It concludes the relationship of energy of dissociation and vibrating spectral constant.

由于分子势函数完全描述分子结构和分子光谱[2]，而且双原子分子的离解能同振动光谱常数之间有密切的关系[3]。

When 2 events occur within a same focal region and the distance between 2 events is far shorter than the distance between events and the station, the ratio of observed spectral amplitudes of the direct P and S phases is linearly correlated with the ratio of their radiation pattern factors, and radiation pattern factors depend on geometrical property focal mechanisms.

发生在同一震源区的两个地震，当地震之间的距离远小于地震到台站之间的距离时，同一个台站的直达P波、S波零频观测谱值之比与其辐射图型因子之比线性相关，而辐射图型因子取决于震源机制解的几何特性。

Spectral Scattering Property of Phytoplankton Calculated by Absorption Coefficient and Size Distribution.

由吸收系数和粒度分布计算浮游植物的散射光谱特征。

Preliminary standard reference spectra for the unliganded enzyme and for the spectral changes induced by sodium dithionite and succinate were obtained. The wavelength and intensity of the UV signal observed in agreement with results of ox-reduced state of heme b.

其次我们使用不同还原剂succinate、Na2S2SO3分别处理两种纯度的样品，通过分光光度计检测细胞色素b的氧化还原状态，观测到了不同还原剂影响下的细胞色素b的特征光谱。

This paper reports results of Tin doped fibre pumped by a semiconductor laser diode as an optical source for methane gas detection. The spectral characteristics of the Tm doped fibre pumped by the 788 nm laser diode is studied experimently and the fibre source is used in a correlation spectroscopy measurement system.

报道了以半导体激光器泵浦掺Tm3+光纤为光源的甲烷气体相关光谱检测系统，研究了788 nm波长泵浦下掺Tm光纤光源的一些光谱特性，并在实验上用这种光源及系统对甲烷气体作了测量。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。