查询词典 atom

" Organic compound Substance whose molecules contain one or more carbon atom s (excluding carbonates, cyanides, carbides, and a few others; see inorganic compound)."

有机化合物：分子中含有一个以上碳原子(不包括碳酸盐、氰化物、碳化物和一些其它物质)的物质。

We can given also the computational formula of the radius of the metallic atom .

我们也能够给出金属原子半径的计算式。

In this dissertation, several properties of quasi-2D trapped Bose-Einstein condensate and atom lasers are studied and discussed.

在这篇论文中，准二维束缚势玻色-爱因斯坦凝聚体的一些性质和原子激光器被讨论研究。

For conservation of momentum, the atom must recoil with a momentum of this magnitude in the opposite direction.

因为动量守恒，原子必然以这样大小的动量向相反方向反冲。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

The results show that they relate to the dipole-dipole coupling strength between two atoms and atom-field coupling constant and nonlinear coefficient of field.

结果表明，它们与原子间的偶极相互作用、原子和光场的耦合系数以及非线性耦合系数有关。

And the influence of the ratio of the two atom-field coupling constants on sudden death of entanglement is discussed.

同时探讨了原子和场的两个耦合系数的比值大小对两个原子的纠缠突然死亡的影响。

Please explain to me the constituents of an atom.

请向我解释一下原子的组成问题。

In this thesis,we try to theoretically and experimentally investigate quantuminterference in atomic multi-level system and atom-molecule hybrid system to findthe conditions for generating quantum interference,the constructive or destructivefeature of interference,and the dependence of quantum interference on theenvironmental conditions.

本文旨在从理论和实验两方面对以往较少涉及的原子及原子—分子混合体系中多能级系统量子干涉效应进行研究，并着重探索量子干涉产生的条件、干涉相长或相消特性及其对外界条件的依赖关系等。

When the atom rate of addition element is beyond the 3.3% as Sm_3Fe_(25.5Cr_2V_(1.5)、 Sm_3Fe_(25Cr_2V_2, the added elements enhance α-Fe phase consumingly, and debase the liquidity acutely, thus depress the magnetic performace.

而当元素添加量过多时原子比大于3.3%，如Sm_3(Fe(25.5)Cr_2V_(1.5)、Sm_3Fe_(25Cr_2V_2，添加元素体现出了非常强烈的对铁元素的稳定作用，造成了α-Fe相大量增加。

After explaining total design of automated test system for microcircuit , the thesis introduces GPIB standard .

文章在说明了微电路模块自动测试系统的总体设计后，对GPIB标准进行了介绍。

He interceded in my behalf.

他替我说情。