查询词典 initial approximation

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。

Two methods for DOA estimation, Signal Subspace Approximation and Signal Eigenvector Decomposition , are presented.

提出了DOA估计的信号子空间近似和信号特征向量分解两种方法。

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。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。