接触

On the morphological differentiation,by inducing of fetal calf serum,it wasshown that the cytotrophoblast cells underwent aggregation first,and the adjacentcytoplasm membranes became tightly contacted through desomosomes andcytoskeleton.Then the adjacent cytoplasm membranes disintegrated fragmentallyto form fusion pore-like structure.Finally the multinuclear cells formed and inwhich the intercellular desmosomes disappeared.Immunocytochemical stainingfurther demonstrated that the formation of syncytium was through cell membranefusion rather than the amitosis process.

细胞形态分化的研究结果表明：早孕胎盘来源的细胞滋养层细胞在血清诱导下，首先发生聚集，并通过桥粒和细胞骨架使相邻的细胞膜紧密接触；之后细胞膜发生片段断裂，形成融合孔样结构；细胞间桥粒消失，最终形成多核的合体细胞；免疫细胞化学分析进一步证实合体化是通过细胞膜融合而非无丝分裂（amitosis即细胞核分裂而细胞质不分裂）实现的。

China has always been a disciplined and cultured nation, and if it seemed to old China hands that it was not, it is likely that it was the disturbing influence of western materialism and amorality that corrupted the personality of the Chinese who were in contact with it, and who thus became, in essence, its victims.

中国一直是一个守纪律有文明的国家，如果对中国通来说，中国看起来似乎不是那样，有可能是由于受西方实用主义和非道德的影响，这种影响腐蚀了和它接触的中国人的品格，这样就会形成这种看法，实质上，这些中国人也是受害者。

To touch or caress with the lips as an expression of affection, greeting, respect, or amorousness .

接吻用嘴唇接触或抚摸，以表达慈爱、欢迎、尊敬或情爱注意，注意力集中

To touch or caress with the lips as an expression of affection, greeting, respect, or amorousness.

接吻：用嘴唇接触或抚摸，以表达慈爱、欢迎、尊敬或情爱

DMCA effectively created an additional exclusive right for content providers and authors: controlling access to a work.

DMCA实际运用的结果，为数位内容提供者创造了著作权以外的排他权，亦即接触著作的权利。

This makes it an ideal lubricant for anal intercourse as well as all other forms of sexual contact.

这使它成为理想的润滑剂肛交以及所有其他形式的性接触。

However, most of singnals are analogue.

但是，目前我们所接触的绝大多数信号都是模拟的。

I am blind of a computer actually, the major that learns in the university is literature, be being contacted with computer at ordinary times also is to stay in game of QQ, network, forum nevertheless above, know the professional thing such as what HTML, ASP far from, even I won't use a few more commonly used office software, dye-in-the-wood computer is analphabetic.

我其实是一个电脑盲，在大学里学的专业是文学，平时跟电脑接触也不过是停留在QQ、网络游戏、论坛上面，根本不懂什么HTML、ASP等专业性的东西，甚至一些较常用的办公软件我都不会用，彻头彻尾的电脑文盲。

Using the Newton-Euler approach, the whole complex analytic dynamics equations considering the base link and two leg's 12 links are derived. Based on the complete dynamics model, the reactive force/moment by the ground could be computed in the simulation.

先利用牛顿-尤拉法推导出含躯干和双足之完整解析动力学方程式，由完整解析动力学模式可以计算动态行走过程中，机器人与地面接触所产生的地面反作用力/力矩。

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。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。