spectrum是什么意思

网络释义

用法例句

As a result,we obtain that the spectrum of system operator A+E in right plane of Re γ≥a1 is composed of finite isolated eigenvalue.

研究了具有早期储备可修复系统,首先给出了该系统的预解式,对δ>0,γ=a+bi,固定a1,a2,满足-μ+δ谱点是由有限个孤立特征值组成。

In this paper,the author study the spectrum of high rank differential operators T (n) (t) of C 0 Semigroup T(t) ,given an approach to construct the spectral set opetator T (n) (t) ,and discussed the relation between the spectral points of both T (n) (t) and infinitesimal generator A of T(t) .

本文研究了C0 半群T(t)的高阶微分算子T(n) (t)的谱给出了T(n) (t)的谱集的一种构造方法 ,讨论了T(n) (t)的谱点与T(t)的无穷小生成元A的谱点之间的关

Semmetry of the point spectrum of diagonal infinite dimensional Hamiltonian operators with respect to the real axis

对角无穷维Hamilton算子点谱关于实轴的对称性

Let B(H) be the set of all bounded operators on a complex separable Hilbert space H;for T∈B(H),let W(T),σ(T) and σ_p(T) be the numerical range,spectrum and point spectrum of T,respectively.

B(H)表示定义在希尔伯特空间H上的所有有界线性算子的全体;对于T∈B(H),W(T)、σ(T)与σp(T)分别表示算子T的数值域、谱与点谱。

The unit layer quantitative interpretation method adopting point-by-point spectrum striping is introduced.

本文分析了目前常用的γ能谱测井平均含量法、传统剥谱法对不饱和混合矿层(铀、钍、钾元素的含量在矿层中分布不均匀)的定量解释存在的原理缺陷;提出了利用γ能谱测井分离铀、钍、钾元素的定量解释新方法—逐点剥谱的单元层定量解释法,简单讨论了该解释方法涉及的形态系数、换算系数和单元层饱和度的确定,以及反形态系数的计算问题。

Chromatogram point value(δ~R_i) of bonding atom i containing many structural information is defined in this paper.

定义包含成键原子多种结构信息的色谱点价(iδR),在邻接矩阵的基础上构建新的连接性指数(mT),并计算112种有机分子的0T1、T值。

The Asymptotic Spectrum and Accumulation of Transport Operator With Continuous Energy;

具连续能量的迁移算子的渐近点谱及其聚点

He was weak and terrified, and he didn't understand.

他浑身疲软，战战兢兢，心里没有一点谱儿。

He was not far off the mark.

这话一点儿也不离谱。

a vegan diet, restaurant, fruit-cake

纯素食谱、 餐厅、 水果糕点.

One of the advantages of the mass spectrometer is that it can record spectra from small quantities of substance.

质谱计的优点之一是它能记录少量物质的质谱。

A Comparison of Several Aspects for Maximum Entropy Spectral Estimation and Fourier Spectral Estimation

最大熵谱估计与傅立叶谱估计的几点比较

null-point molecular absorption spectrometer

零点平衡式分子吸收光谱仪

determination of boiling range distribution-gas chromatography method

沸点范围测定-气相色谱法

location reagent

定位试剂（斑点或谱带显色剂）

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics

波谱与原子分子物理国家重点实验室

State Key Laboratory of Ultrafast Laser Spectroscopy.

超快速激光光谱学国家重点实验室

Study of VC Trigger Efficiency on BESⅡ

北京谱仪顶点探测器触发效率的研究

THE RELATIONS BETWEEN THE COVERING NUMBER AND THE LAPLACIAN SPECTRAL RADIUS;

图的点覆盖数与其Laplace谱半径

The Research on Inhibition of Photobleaching and Blue Shift in Quantum Dots

量子点光漂白及光谱蓝移的抑制研究

Determination of Trace Cobalt in Samples by UV-Vis after Cloud Point Extraction

浊点萃取-紫外可见光谱法测定痕量钴

Study of Point Target Spectrum for Bistatic SAR Imaging

双基SAR成像的点目标解析频谱研究

Separation and Determination of Copper(Ⅱ) and Cobalt(Ⅱ) by HPLC after Cloud Point Extraction

浊点萃取-高效液相色谱法测定铜、钴

Improved Spectral Method for Point Pattern Matching

一种用于点模式匹配的改进型谱方法