系数

The numerical solutions for different coefficient and different boundary conditions are obtained for two models of radon field which have respectively source in the side and inside of collapse column.

根据流体场的扩散理论和对流理论，建立了扩散系数与对流速度为常量或变量情况下的氡气场三维状态方程；对于陷落柱柱体侧面有源氡气场和柱体体内有源氡气场两种理论模型，给出了不同系数和边界条件下的数值解的形式。

In view of special applications of multi-pole magnetic permanent torque motor used for precise numerical control rotary table, motors with higher torque density and lower torque ripple s are needed.

针对精密数控转台伺服直接驱动用多极永磁力矩电机的特殊应用问题(要求电机有较大的转矩密度且较小的转矩波动)，在分析该种电机的特殊结构的基础上，提出一种新型不等齿顶宽结构，以提高绕组利用系数，加大电机的转矩密度；并采用转子斜极的方法，可在有效消除转矩波动的同时，电机仍保持较高的绕组利用系数。

In view of special applications of multi-pole magnetic permanent torque motor used for precise numerical control rotary table, motors with higher torque density and lower torque ripples are needed.

针对精密数控转台伺服直接驱动用多极永磁力矩电机的特殊应用问题(要求电机有较大的转矩密度且较小的转矩波动)，在分析该种电机的特殊结构的基础上，提出一种新型不等齿顶宽结构，以提高绕组利用系数，加大电机的转矩密度；并采用转子斜极的方法，可在有效消除转矩波动的同时，电机仍保持较高的绕组利用系数。

A spatial distribution of diffuse reflectance produced by obliquely incident light is not centered about the point of light entry.

倾斜入射的光所产生的漫反射的空间分布，其中心与光的入射点存在一个偏差，这个偏差与组织的吸收系数和有效消光系数有直接的关系。

The heat transmission from blade to rim is being simplified on the analogy of heat transmission in ribs.

把汽轮机叶片对叶轮的传热简化为肋片传热，使用肋片传热模型计算汽轮机叶片流道的等效传热系数，采用圆筒壁模型计算汽轮机叶轮轮缘的总传热系数，并给出了应用实例。

In order to overcome the drawback of the GPC in the parameters tuning, a new GPC with variable parameter design based on BP Neural Networks is presented and the on-line tuning of the output softness factor a and the control increment weight λ are achieved.

针对广义预测控制算法中控制参数整定困难这一缺陷，提出了一种基于BP神经网络变参数设计的广义预测控制算法，实现了广义预测控制中的输出柔化系数α和控制增量加权系数入的在线调整。

AS-asign algorithm involve two LMS algorithms, the first is the estimation of the tap coefficients, and the second is the estimation of the optimal step size.

包括两个LMS算法，一个LMS算法是用平均Sign-regressor方法调整线性多用户检测器的权值系数，另一个LMS算法是通过第一个LMS算法得来的权值系数自适应地计算最佳步长。

However, the orthogonal properties of wave functions can not be used to simplify the boundary conditions when the spring coefficient in the interface spring model is inhomogeneous along the circumference.

在弹簧界面模型中，当弹簧系数沿周向分布均匀时，可利用波函数的正交性简化边界条件；当弹簧系数沿周向分布不均匀时，不能利用波函数的正交性简化边界条件。

As to nonparametric and semiparametric regression models, the most widely used regression methods include: local smoothness, including Nadaraya-Watson kernel estimate, Gasser-Muller estimate, local polynomial method; spline method(such as smoothing spline, spline penalies and so on); other is orthogonal series estimates, such as Fourier series and so on.

本文主要介绍Nadaraya-Watson核估计方法对非参数模型估计的思路和估计方法，变系数模型中函数系数的局部多项式估计，包括估计思路，估计计算。

As to nonparametric and semiparametric regression models, the most widely used regression methods include, spline method(such as smoothing spline, penalized spline and so on); local smoothness, such as Nadaraya-Watson kernel estimate, Gasser-Muller estimate, local polynomial method; the third is orthogonal series, including Fourier series and so on.

所以三次光滑样条应用比较广泛。本文应用三次光滑样条方法来估计单指标部分线性模型中单指标参数和变系数部分线性模型中的函数系数。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。