查询词典 finite

The major types of finite subordinate clause are relative clause, adverbial clause and nominal clause.The major types of non—finite subordinate clause are infinitive clause,—ing participle clause and —ed participle clause and verbless clause.

非限定从属分句的形式有不定式分句，以—ing 结尾的分词分句，以—ed 结尾的分词分句和无动词分句 Chapter 12 Relative Clause 关系分句 31 难点，一，难点，重点 1。

In this paper, numerical computations are made on the scattering of ultrasonic pulse waves with different centroid frequencies of 100 kHz,500 kHz and 1 MHz in fluid-filled finite-length perforation by using Finite Element Method,where three kinds of models of perforation bottom, I.E., flat bottom, stepped bottom and acuminated bottom,are assumed to simulate the practical bottoms of perforation.

乔文孝，杜光升。射孔孔眼中散射超声脉冲波的FEM模拟。测井技术，2001，25（2）：96～100 采用有限元素法，分别数值计算了平底孔道、台阶式孔道和尖劈状孔道等3种孔眼模型中不同中心频率(100 kHz、500kHz、1 MHz)的散射超声脉冲波。

Aiming at the ballasted continues welded track and turnout structure on the normal embankment, stability analysis model of continues welded track is established by finite element method to avoid the disadvantages of traditional methods, compile the finite element analysis program and make comprehensive analysis on the lateral deformation and vibrational characteristics caused by temperature force of the continues welded track and turnout str ucture.

本文针对有砟轨道普通路基上无缝线路及无缝道岔轨道结构，运用有限元法，建立了三维无缝线路稳定性分析模型，避免了传统理论假设过多的弊端，基于有限元分析软件，编写了有限元分析程序，对无缝线路和无缝道岔的横向变形和横向振动特性进行了全面研究，主要研究内容有：1。

The result is compared with finite element method's result also. The paper's work has richened the finite formulation calculation technology for eddy current field.

该文的工作，丰富和完善了有限公式理论在涡流场方面的计算技术为在其他工程问题上的进一步应用打下了基础。

Finite element analysis of the rear face scabbing size is also performed. The equivalent material moduli of the steel-fiber reinforced concrete slabs are calculated by the equivalent inclusion method for the finite element model.

本研究中另以等价同质体法理论及有限元素数值模拟的方法，计算钢纤维混凝土板於遭受低速撞击后靶板背面之疤落破坏直径，其结果并与实验量测数据进行比对，俾验证数值计算分析之合理性与适用性。

The mesh model was then built in ALGOR, the finite element analysis software. Results The three dimensional finite element model was constructed on the computer, which had 47 155 nodes and 41 878 tetrahedrons elements.

结果：所构建的三维有限元模型具有良好的几何相似性，共有单元47 155个，节点数41 878个，可以按照不同的研究要求进行删除、旋转、切割和添加。

For example, a regenerative reheating furnace fluid flow and heat transfer is researched, which has simplified the flow and heat transfer of hot air stove according to its real operating conditions.The fluid flow and heat transfer of a hot air stove are numerically simulated by using finite volume method or finite difference method,which bases on the heat transfer equation,flow equation of the gas and heat balance equation.

根据热风炉的实际运行状况对蓄热式热风炉内的流动换热过程进行了合理的简化，并基于热传导方程、气体流动方程和气体的热平衡方程，建立了蓄热体的非稳态传热模型，在对模型利用有限差分法和有限容积法得到离散方程的基础上，采用C 语言编制了模拟计算程序。

Compared with the research of the geometric nonlinear finite element method home and aboard in the components such as bar, plate, beam and shell element, the present problems is analyzed and the future research direction is described for the theoretical research and program design of geometric nonlinear finite element method.

综合比较了几何非线性有限元法在杆、梁、板、壳等方面的国内外研究成果，指出目前仍存在的问题，提出今后的发展方向，为几何非线性有限元的理论研究与程序设计提供参考。

In this paper, design is first conducted for the bed of a CNC lathe and Pro/ENGINEER is employed for modeling, then Pro/MECHANICA is used for finite element analysis. It is shown by the result that measures like finite element analysis can be employed for optimization design, thereby avoiding the inherent structural defects and disadvantages.

本文首先对某数控机床的床身进行设计并利用Pro/ENGINEER建模，然后运用Pro/MECHANICA对其进行有限元分析，结果表明：有限元分析等手段可以进行最优化的设计，避免结构存在先天上的缺陷和不足。

In this dissertation, first, based on theory of cutting tooth about the gleason spiral bevel gear, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of the double circular arc spiral bevel gear, using GB12759-1991 type of double circular arc gear as a basic gear profile, a three-dimension solid model of double circular arc spiral bevel gear which has the good adaptability was carried out by used of Unigraphics software;Second, by researching of the algorithm about contact and collision as well as various contact types based upon Contacting Finite Element Method, a foundation was laid for selecting the contact type in analyzing contact stress of double circular arc spiral bevel gearing;Finally, through the connection port of PARASOLID between UG software and ANSYS/LS-DYNA software, the three-dimension solid model of double circular arc spiral bevel gearing obtained above in UG was imported into ANSYS/LS-DYNA, a finite element analyzing about contact stress of double circular arc spiral bevel gearing was carried out by applying new loading method.

本文首先基于格利森弧齿锥齿轮加工原理及切齿啮合过程中的啮合方程、产形轮齿面方程以及双圆弧弧齿锥齿轮的齿面方程，选用GB12759-1991型双圆弧齿轮基本齿廓为基准齿形，利用Unigraphics软件的建模功能，绘制了有较好适应性的双圆弧弧齿锥齿轮传动三维实体模型。其次，描述了应用有限单元法进行实体接触与碰撞问题算法的公式，研究了有限元分析中的各种接触类型以及双圆弧弧齿锥齿轮接触应力分析中所选择接触类型的依据。最后，通过UG软件和ANSYS/LS-DYNA之间的PARASOLID接口工具包，将UG软件中得到的啮合齿轮模型导入ANSYS/LS-DYNA有限元分析软件，给出一种新的加载方法，进行了双圆弧弧齿锥齿轮传动的接触应力的有限元分析。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。