一阶

combining the mass unbalanced response calculation method with the dyna mic balance method of the flexible rotors on the spot and based on the 1st and 2nd order mass unbalanced models, an influence coefficients method for mass unba lanced response calculation is presented.

摘 要 将目前发电机组轴系质量不平衡响应计算方法和柔性转子现场动平衡方法相结合，在给出转子一阶、二阶质量不平衡模型基础上，提出了计算轴系不平衡响应的影响系数法。

The modified Reynold＇s equations of first-order slip-flow and second-order slip-flow for the micro gas bearing are obtained.

利用有限差分法对连续流、一阶滑移流和二阶滑移流的雷诺方程分别求解，得出相应的承载力和偏位角。

The experimental method are established to determine the tortuosity factor. The SPSR method and the computer system are used to get the one-step origin quadrature and the two-step center quadrature. Parameter evaluation is also used to calculate the tortuosity factor.

本文建立了催化剂曲折因子的实验测定装置，用SPSR法，应用计算机采样系统，得到脉冲应答曲线的一阶原点矩和二阶中心矩，结合参数估计的方法，计算了XNC-98甲醇合成催化剂的曲折因子。

The theories of ship steering are recapitulated and the linear differential equations are deduced. The Nomoto one/two order of linear models and Norrbin/Bech nonlinear models are discussed.

概述了船舶操纵理论，推导了船舶操纵运动线性微分方程，讨论了Nomoto一阶／二阶线性模型及Norrbin／Bech的非线性模型。

Based on the principle of virtual work,continuous stiffness mapping model including the deformation of active and passive joints and gravities factor was established.

应用影响系数法求解了弹性铰平面并联3-RRR机器人的一阶、二阶影响系数，借助虚功原理建立了包含主、被动铰链弹性变形，杆件及其平台自重的连续刚度映射模型。

The paper design start point with a four-group the paraxial lens set with two groups lens of movements, among the first order and three order aberration is ignored. The imprimis acquisition optical zoom focal length start the structure.

本文的初始的设计以四群组成二群移动的理想透镜组，其中不考虑一阶及三阶象差，首先取得光学变焦的初始结构。

The foil is coated until a given interference color pertaining to an interference of a first or second order is reached on the foil.

薄金属片的镀膜一直要继续到其上的膜达到一阶或二阶干涉的指定干涉色为止。

According to the structural properties of tuning blade-disk assemblies, the matrix perturbation method is used to analyze the influence of mistuning on the natural vibration characteristics. The formulas for perturbation values of first and second order are derived.

根据谐调叶盘的结构特点，用矩阵摄动法分析了失调对叶盘固有振动特性的影响，推导了孤立特征值和密集模态组二种情况下固有频率和振型的一阶、二阶摄动计算公式。

The influences of length-to-thickness ratio, material anisotropy and torsions effect on natural frequencies and buckling loads were also investigated.

分析中同时考虑了一阶和高阶横向剪切变形、转动惯量、细长比、各向异性、扭转变形等多种因素对组合梁固有频率和屈曲载荷的影响。

Chapter Page 2 27 Consider the two tensors ai of order one and bij of order two.

考虑两个张量，一阶张量ai，二阶张量bij相乘，得到新张量为张量cijk

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。