查询词典 spectrum

The purification and character of spectrum of red protein R(subscript x of Nostoc flagelliforme was studied in the paper.

研究发菜中一种红色蛋白R(下标 x的分离纯化及其光谱学性质。

The determination method of 237 Np in the large amount of uranium by γ spectrum is developed.

研究建立了γ谱法直接测定大量铀溶液中2 3 7Np的方法。

Optical parameters of GaInP were measured by using null ellipsometric spectrum method in the visible light region at room temperature The dependencies of refractive index and absorption coefficient for three samples on the energy of photons were obtained, and the result was analyzed and discussed The positions of energy gap of three samples were give

利用消光式椭圆偏振光谱法，在室温下可见光区对光电子材料镓铟磷的光学参数进行了测量，得到该材料的折射率和吸收系数随光子能量的变化关系曲线，并对结果进行了分析和讨论，给出了镓铟磷带隙的位

The nullity of a graph is the multiplicity of the eigenvalue zero in its spectrum.

图的零度是指在图的谱中特征值0的重数。

Is the first professional-grade read music software, in addition to features already have a large number of musical notation, but also an increase of 5-line drum spectrum, from arbitrary line began to play and the acceleration and deceleration, the perfect adjustable angle connection and other professional functions, the lyrics dealt with folk symbol processing, paving the way for the people.

是国内第一个专业级五线谱软件，除拥有众多简谱已有的功能外，更增加了五线鼓谱、从任意行开始演奏及加速和减速、完美的可调节角度的连线等专业功能，在歌词处理、民乐符号处理方面为国人扫清了障碍。

In chapter5, the serial properties of numerical range of operator polynomial are put firstly. Secondly, the relation between numerical range of operator polynomial and n-numerical range are considered. Thirdly, in the light of matrix norm, matrix singular value, the regions and bounds of numerical range and spectrum of operator polynomial are dicussed carefully.

第五章研究了算子多项式数值域的性质、算子多项式数值域与n-次数值域的关系，特别地利用矩阵范数、矩阵的奇异值、非负矩阵的理论、友矩阵为工具，给出了算子多项式数值域及谱的范围全面刻画，并深刻地研究了算子线性束的正则性的等价条件及谱分布。

After introducing VI and advantages of LabVIEW on programming in general, a module for fault diagnosis of rotor based on LabVIEW is discussed. It is a valuable part of the online monitoring system. The module is comprised of axis orbit and full spectrum and in the axis obit module three choices are available: original axis obit, average axis obit and certain frequency multiplication axis obit.

在简介了虚拟仪器和LabVIEW编程优点的基础上，介绍了利用LabVIEW开发的转子故障诊断模块，它是在线监测系统得重要组成部分，包括轴心轨迹模块和全谱分析模块，其中轴心轨迹模块包括信号的原始轴心轨迹，各倍频轴心轨迹和平均轴心轨迹。

Time of flight mass spectra are abtained. The peaks at short wavelength side are relatively higher, the peaks at long wavelength are relativ ely broader and obscurer in the MPI spectrum.

得到了分子的飞行时间质谱，从整个实验波段430～490 nm的 MPI离子谱发现，短波的MPI离子谱峰相对较高，长波的MPI离子谱峰相对较宽而弥散。

We researched the pre-processing algorithm of mapping signal: A comb filter was designed according to the property of the electromagnetic environment in operation room and the spectrum of EPM signal The Zero-Phase property has been achieved by using bi-direction IIR filter during off-line data processing.

研究了心外膜标测信号预处理算法：针对在手术室环境下电磁干扰强的特点和除极信号频谱分析的结果，设计了梳状数字滤波器，利用数据离线分析的特点进行双向IIR滤波，在减少计算量的同时实现了零相位特性。

In this paper, the effections on time skew estimation with non-ideal test signal are studied using spectrum analysis method, and an algorithm of time skew estimation is presented, the validity of the algorithm is verified by the computer simulation.

本文采用频谱分析方法，研究了非理想测试信号对时间偏差估计的影响，提出了一种新的时间偏差估计算法，通过计算机仿真数据验证了算法的有效性。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。