高级搜索提供用户以日期、语种、布尔逻辑和近似条件搜索。
Advanced search provides users with the date, language, Boolean logic and search for similar conditions.
对比绝热近似时的情形，给出一种二能级系统的绝热近似条件。
We present the adiabatic condition of two states system after contrasted it with adiabatic models.
在绝热近似条件下，采用传递矩阵方法计算了电子和空穴的能谱。
The energy spectrum of the electron and hole is calculated using the transfer matrix formalism in the adiabatic approximation.
从经典电磁场理论出发，主要介绍了傍轴近似条件下，光束的轨道角动量和光束的参数之间的关系。
Based on the classical theory of electromagnetism, the relation and the difference between OAM and the parameter of the beam in paraxial approximation are analyzed.
在线性近似条件下，量子化了非线性薛定谔方程，用后向传播法数值求解了孤子源啁啾对量子光孤子的影响。
Based on the linearization approximation, nonlinear schrodinger equation is quantized, the influences of the soliton source chirp on quantum soliton is studied by using the back-propagation method.
采用传输线理论，在线性近似条件下推导出起因于输入电压的非对称和电路元器件非对称的纹波的解析表达式。
By using transmission line theory and linear approximation of the circuit, analytical expressions are derived for the ripple due to asymmetry of input voltages and circuit elements.
实际中，小井源距多波vsp观测的直达波满足这种沿垂直对称轴方向的近似条件，因此本方法具有重要的实际意义。
In practice, direct wave in near-offset multiwave VSP satisfies this approximate condition; so this method is of practical importance.
利用菲涅耳基尔霍夫衍射积分和非线性近轴波动方程，在远场近似及光学薄近似条件下，得出了位相调制产生“热像”出现的位置及强度满足的解析关系。
According to the Fresnel-Kirchhoff diffraction integral and nonlinear paraxial wave equation, we derive the functional relationship of the intensity of hot image and its location.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
The expression of complex amplitude is given in reference plane vertical to the optical axis by far-field approximation when the line source and the principal axis are at any Angle.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
Starting from the wave differential equation, a method is deduced to express the complex amplitude of light wave fields in the reference plane which is vertical to the optical axis.
随后我们提出了求解这类概率约束随机规划的一种近似算法，并在一定的条件下证明了算法的收敛性。
And then, we present an approximation method for solving this probabilistic constrained stochastic programming, and prove certain convergence of the method under some conditions.
然而，在苛刻光照条件下，这种近似的误差往往比较大，以至于很难恢复出反射率信息。
However, the approximation error can be large under harsh lighting conditions, thus making it difficult to recover albedo information.
这表明本文推导的计算公式是可行的，近似塑性条件对理论计算的挤压变形力具有显著的影响。
This indicates the formulas are feasible, and approximate plasticity conditions have the distinct effect on the value of extrusion force given by calculating formulas.
从精确解出发，推导出最近文献中提出的“解析近似解”，并指出该近似解的适用条件。
The recently proposed "analytic approximation solution" is proved to be a good approximation to the corresponding analytic solution under some conditions.
然后，简略地证明了平衡压力的稳定条件以及燃烧室压力与平衡压力的近似关系。
The stable condition of equilibrium pressure and the approximate relationship between the chamber pressure and the equilibrium pressure are derived.
对地质结构复杂地区，该法可以避免某些不适当的近似假设条件。
In areas where geologic structures are complicated, this method may avoid some inappropriate approximate hypotheses.
通过对大量地震震害调查，建立了同一工程项目的基本条件关联系数的近似处理方法。
Through large earthquake damage survey, we establish approximate treatment means on essential condition association coefficient of the same project.
当颗粒粒径满足一定条件时，米氏光散射可以用夫琅和费衍射来近似。
When the diameter of the particles satisfied some conditions, Mie theory is approximate to Fraunhofer diffraction theory.
进一步指出了高斯光束作为波动方程傍轴近似解的条件。
Furthermore, the conditions have been given that Gaussian beam is a paraxial approximation solution of the wave equation.
强非线性过阻尼振子系统中绝热近似的适用条件是(5)式。
The applicable condition of adiabatic approximation in the system of strong nonlinear over damping oscillator is the equation (5).
数值结果表明，在先验知识满足的条件下，近似最优参数法所找到的正则化参数是对最优正则化参数的较合理近似。
Numerical results show that 'near optimal' parameter can be considered as an acceptable approximation of optimal regularization parameter with available priori information.
应该记住由状态图描述的这种转化只适合于通过缓慢冷却的近似平衡条件。
It should be remembered that the transitions that have been described by the phase diagrams are for equilibrium conditions, which can be approximated by slow cooling.
在一定的条件下，复杂形体的目标平均雷达截面积近似地由局部反射区域平均雷达截面积的算术和来确定。
Under the certain conditions, the average RCS of targets with complex shape are generally subject to the arithmetic sum of the mean RCS by local reflection area.
根据光波导理论，推算出弱导条件下光沿光纤传输场的标量近似解，给出场的各分量表达式，以便分析讨论。
Using wave guide theory, we deduce scalar approximate solution about transmissive light through a fiber weak-guide and give the expressions of field in each component.
在相同的血管条件、相同的封管方法及近似药物使用的情况下，观察两组病人的静脉炎、套管堵塞、套管脱出以及留置时间。
Under the same condition of vessel, tuber sealing method and drug using, the occurrence of phlebitis, block and disengage of tuber, retain time were observed between the two groups.
给出了求解具有周期边界条件色散方程近似解的交替分组迭代法。
The alternating group iterative method for the dispersive equation with periodic boundary condition is presented.
证明了当特征值，特征函数及控制支撑点满足某些条件时系统的整体近似能控与有限维精确能控性。
This system is globally approximately controllable and finite-dimensional exactly controllable when the eigenvalues, eigenfunctions and the points which support the controls satisfy some assumptions.
证明了当特征值，特征函数及控制支撑点满足某些条件时系统的整体近似能控与有限维精确能控性。
This system is globally approximately controllable and finite-dimensional exactly controllable when the eigenvalues, eigenfunctions and the points which support the controls satisfy some assumptions.
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