查询词典 atomic age

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

The recent development of the analysis of trace arsenic is reviewed,including spectrophotography,atomic-absorption spectrometry,atomic-fluorescence spectrometry and electro-chemical determination.

综述了近年来痕量砷的测定方法，主要包括分光光度法、原子吸收光谱法、原子荧光法、电化学方法、X-射线荧光法、电感耦合等离子体质谱法等，并展望了联用技术在砷形态的分离和测定的应用前景

The key techniques involve linearly composing atomic synopses, recursively embedding atomic synopses, reduction between algorithms and localizing algorithms and etc.

采用的关键技术有线性组合、递归嵌套、算法简化和算法局部化。

The history and the present conditions of the atomic physics are synoptically reviewed; highly ionized atomic systems are frequently met in the study of the experiment physics, astrophysics and nuclear physics, the study of them is of great benefit of the development of the related experiment and theoretic physics.

简要地回顾了原子分子物理学发展的历史及现状，特别阐述了高离化原子，因为高离化原子在实验物理、天体物理以及核物理中经常遇到，所以研究它们的性质可以促进相关的实验物理以及理论物理的发展。

We establish the quantum theory of the one-mode micromaser injected by ultracold V-type three-level atoms with atomic coherence, and discuss the properties of the emission probability, the photon statistics, the spectrum and the velocity selection. We find the following results. There are two sets of peaks in the plot of the emission probability versus the cavity length. The injected atomic coherence can deeply affect the values of the two sets of peaks and the unresonant platform.

第一部分包括第一章到第四章，在这部分，我们建立了具有原子相干性的超冷V型三能级原子注入的单模Micromaser的量子理论，研究了原子发射几率、腔场光子统计、腔场光谱、以及腔对原子速度选择等性质，并着重研究了原子相干性对这些性质的影响。

Through the nonlinear coupling interactions between atomic waves, the structure appears as the matter-wave gratings, and diffracts its surrounding atomic waves.

通过原子波之间非线性耦合相互作用，这种结构可以表现为物质波光栅，对其周期的原子波产生衍射现象。

012 In logic, nothing is accidental: if a thing can occur in an atomic fact the possibility of that atomic fact must already be prejudged in the thing.

2.012 在逻辑中没有偶然的事情：如果一个事物能够出现在原子事实中，那么这个原子事实的可能性必定早已包含于该事物之中。

In this study, the characterization methods of barium nitrate were investigated by inductively coupled plasma atomic emission spectrometry, Flame Atomic Absorption Spectroscopy, and Ion Chromatography to detect the concentration of barium in powder and estimate the concentration of barium nitrate.

本研究利用热板加热消化发射药，并以硫酸钡沉淀法、感应耦合电浆发射光谱仪、火焰式原子吸收光谱仪及离子层析仪检测发射药中钡含量进而推算其硝酸钡含量。

The atomic coherences in four and three level systems are discussed in this thesis:1Atomic coherence effects in four-level N-type atomic system are discussed.

为此，我们对此做了一系列深入研究，本文的主体内容有二：第一，研究了N型四能级原子系统中的原子相干效应。

When the detuning between the atomic transition frequency and the frequency of each mode is much large, the probability of atomic transition can be neglected.

当原子上、下能级的跃迁频率与腔场的每个模的频率都失谐较大时，原子的跃迁几率可以忽略。

Eight cases of simple chordee of penis were adopted urethral extending.9 cases of severe simple chordee of penis were adopted primary urethroplasty.

8例单纯性阴茎下弯患者采取尿道延伸术，9例重度阴茎下弯患者采取切断尿道矫直阴茎一期尿道成形术。

She is a daintily dressed young lady.

她是个装饰娇艳的少女。