查询词典 essential element

The essential feature of the Communist Society is the liberation of humanity, which directly requires that the society take the liberation of humanity as its essential element, and set up the non-possessive system in social mechanism and communization and sharing in the way of life. That's why it is called the Communist Society.

共产社会最根本的特征是人性解放，直接要求社会以人性解放为基本要义，在社会机制上建立非占有制度，在生存方式上表现为共产共享，故称为"共产主义"。

Part of the findings shows the composition of pythoncidere is similar to that of the steam-distilled Cryptomeria japonica essential oil, based upon which an experiment about the Cryptomeria japonica essential oil's effect on animals is conducted. This leads to a further finding that the major element of terpene "limonene"is quite effective to central nervous system, and it can be hypnotic, anxiolytic and analgesic.

该研究还发现芬多精的组成与利用水蒸气蒸馏的柳杉精油的成分相类似，於是进一步以柳杉精油进行动物试验，发现了柳杉中的芬多精及其主要的萜类成分－「柠檬烯」，对动物中枢神经系统有相当大的影响，而且具有安眠、抗焦虑及镇痛的功效。

Based on the good essential boundary condition processing capability of radial point interpolation meshless method, as well as the better computing efficiency of Element-free Galerkin method, the mixed method coupling EFG and RPIM is used to deal with the essential boundary condition.

基于径向基点插值无网格方法良好的本质边界条件处理能力，以及无网格伽辽金方法较好的计算效率，应用混合元法耦合两种无网格方法进行了本质边界条件的处理，数值算例结果表明：混合元法简明有效，计算概念清晰，易于编程计算。

It explains mainly essential techniques on the mechanical overall aspect on binary optical element's laser direct lithography equipment which has been manufactured by us. Simultaneous, it still gives the essential technology indexes and development state of slideway, transmission systems, round journal and focusing servo.

重点介绍了长春光机所研制的二元光学元件激光直接写入设备中机械总体方面的主要关键技术，给出了导轨、传动系统、回转轴系、调焦伺服机构的主要技术指标和完成情况。

Using the atomic absorption law examination essential element copper, the zinc, the calcium, the magnesium, the hard content, the anode dissolves the voltammetry examination toxic element blood lead content, and carries on the comparative analysis with the normal comparison group.

应用原子吸收法检测必需元素铜、锌、钙、镁、铁含量，阳极溶出伏安法检测毒性元素血铅含量，并与正常对照组进行比较分析。

In the dissertation, meshless element free Galerkin method which utilizes moving least square is used for solving heat transfer problems. Lagrange multiplier method is used to deal with the essential boundary condition. Some parameters in element free Galerkin method, which influence the precision, are also discussed in the numerical simulation. The adaptive method of meshless method is also stated.

本文采用了基于移动最小二乘近似的无网格伽辽金法计算了热传导问题，采用拉格朗日乘子处理本征边界条件；讨论了无网格伽辽金法各个计算参数在数值模拟中对计算精度的影响；并对无网格的自适应方法进行了研究。

Element-free Galerkin Method is a effective method for solving partial differential equations with the help of shape functions coming from moving least squares approximation. It is well-suited to problems involving large deformation and crack propagation etc on which Finite Element Method can not be used easily. But EFGM is computationally expensive and it is hard to impose the essential boundary condition. Coupling the EFGM and FEM can fetch up the defect of EFGM and improve the efficiency highly.

无网格伽辽金法是基于移动最小二乘法的一种用来求解偏微分方程非常有效的方法，在处理诸如高度大变形、裂纹动态扩展等有限元法较难解决的问题时有其独特的优势，但是存在处理边界条件复杂，计算量大的不足，将无网格法同有限元耦合可以解决这些缺点，极大的提高计算效率。

So it can be essential momitoringindex of colon carcinoma and its tumor specificness is apply by manygene therapy of tumor. Transcriptional regulatory element of CEAcontains enhancer element and promotor in the 5th flanking region whichcan control expression of objective gene in positive cancer tissue of CEA. Objectives: To explore the joint promoter with high activity,consisting CEA promotor and CMV enhanser.

目的：本课题探讨由CEA启动子、CMV增强子组成的高活性嵌合启动子，通过融合启动子的调控提高融合自杀基因yCDglyTK在靶细胞表达的特异性；并以无毒副作用生物相容性好的磷酸钙纳米为载体，将该自杀基因靶向导入结肠癌细胞中，以达到提高基因治疗靶向性及安全性的目的。

Pass questionnaire to investigate, the method that degree of taller pay element; approbates to be analysed with statistic in can understanding people memory can undertake classified to the structure of pay element, in order to choose significant pay essential factor, the practice that directive post evaluates.

通过问卷调查，可了解人们心目中认可度较高的报酬要素；用统计分析的方法可对报酬要素的结构进行分类，以筛选有效的报酬要素，指导岗位评价的实践。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。