查询词典 approximation methods in physics

Mean activity coefficients of 12 electrolytes in their aqueoue solutions have been calculated over a wide range of concentration by use of the mean sphere approximation considering the hard-sphere contribution in the calculation proce- dure.

本文应用 MSA 方法，对0～2m 浓度范围内的12种电解质在水溶液中的平均活度系数进行了理论计算，计算结果与文献值吻合得很好。

The first thing we need to do is determine the mean ecliptic longitude of the sun for your chosen day. Use this table to get a first approximation.

第一件事，我们需要做的是确定的意思，黄道经度的太阳为你的选择每天使用此表，以获得第一次逼近。

The effective mass approximation model can very well describe the behaviors of the excitons confined in the dots.

有效质量近似模型可以很好地描述激子的基态能量的量子尺寸效应。

His hair fell over his eyes in an exact approximation of carelessness and his skin glowed with an egg-shell white perfection that Harry always envied as a teenager, even when he was trying to sock him in the nose.

他深蓝色的袍子完美的裹着他修长的身体，那厚实的布料象是天鹅绒，很吸光，还一同吸引了所有的目光。

The theoretical results demonstrates that the mechanical transfer characteristics of double coating depend on the relative magnitude of elastic modulus between cladding and buffer under the small radius approximation compared with the model of single coating.

理论研究表明：在小半径近似条件下，双涂层光纤的力学传递特性决定于涂覆层和缓冲层的弹性模量的相对值；当缓冲层的弹性模量远大于涂覆层时，其作用可忽略。

By agreement, a practical approximation of the elastic limit, called the offset yield strength, is used.

因此我们定义了一个实际存在的，弹性极限的近似值，称为残余变形屈服强度。

Elastic Limit, Apparent—Arbitrary approximation of the elastic limit of materials that do

表观弹性极限—应力-应变曲线中没有明显线性段的材料的弹性极限的近似值，它等

By using of the elastic approximation model and scattering matrix method, we investigate the acoustic phonons transport and thermal conductance in a H-branch four-channel nanostructure.

利用弹性近似模型和散射矩阵方法，研究了低温下多通道量子结构中的弹性声学声子输运和热导的性质。

The definition of correlation energy in Electron Gas Approximation is not equivalent to that in Hartree-Fock framework.

电子气近似中的电子相关能与量子化学中的Hartree-Fock相关能在定义上不相互等同。

First, we have developed a multi-reference configuration interaction method based on the separated electron pair wave functions, SEP-CI approach, as an approximation to the traditional CASSCF method.

一，我们发展了基于隔离电子对波函数的组态相互作用方法，这是一种新的多参考态电子相关方法。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。