反点

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。

However, in order to reach this point, the anti-virus program is executed, it must be the presence of memory, so the adoption of this point, it can be detected by anti-virus program.

然而，为了达到这一点，在反病毒程序被执行的时候，它必须驻留内存，所以通过这点，它可以被反病毒程序检测到。

The common method of disassembly, referred to as the linear sweep method, assumes that all bytes starting from the entry point of a binary are instructions, and disassembles the entire code segment, following successive bytes.

反汇编的通常方法，即所谓线性扫描方法，假定从二进制代码入口点开始的所有字节是指令，并且顺序反汇编整个代码段字节。

Ft Interior Volume Rear: 38.0 cu. ft Luggage capacity: 13.7 cu. ft Performance 0-50 mph (0-80 kmh): n/a 0-60 mph (Manual / Auto): 7.8 / 9.0 sec (7.8 sec / 9.6 sec. quattro) 1/4 Mile: n/a Top estimated speed: 130 mph (203 kmh)- Electronically limited for North America Fuel Economy City (Manual/Auto): 19 / 18 mpg (19 / 18 mpg quattro) Highway (Manual/Auto): 27 / 28 mpg (26 / 27 mpg quattro) Combined (Manual/Auto): 23 / 23 mpg (22 / 21 mpg quattro) Standard Features Comfort/Convenience:· Electronic automatic climate control system, including air conditioning · Power steel sunroof · Power windows with one-touch down, lock-out for rear windows, pinch protection and one-touch up for front windows · Retained accessory power for windows and sunroof · Tinted glass, banded windshield · Power rack and pinion steering · Convenience close feature for windows and optional sunroof · Electronic cruise control with resume and speed up features · Dual power mirrors with defog feature · Electric rear window defogger · Power central locking system including trunk and fuel door; selective unlocking · Heat ducts to rear seat area · Illuminated glove box, trunk, lighter/ashtrays, engine compartment · Ignition key with integral light · Dual illuminated vanity mirrors · 4-passenger assist handles · Time delay interior light · Anti-theft vehicle alarm system · Cupholders · Fuel cap hanger feature Interior/Seating and trim:· 8-way power front seats with manual lumbar adjustment · Front seat map pockets · Facette weave cloth · Leather-wrapped steering wheel · Fold down rear-center armrest with storage container · Rear center armrest · Full length center console with forward storage bin, including cupholders · 60/40 split/fold rear seat with locking seat back · Genuine burled walnut wood trim for dash, door panels and console · Front and rear carpet floor mats Instrumentation:· Backlit instrument cluster, red illumination · Tachometer and electric speedometer · Analog clock · Outside temperature gauge · Trip odometer · Coolant temperature gauge · Oil temperature gauge · Voltmeter · Intermittent wiper mode Audio Systems:· AM/FM stereo cassette radio with anti-theft · 6-speaker sound package · Rear window antenna · Preparation wiring for CD changer · Preparation for cellular phone Exterior:· Aerodynamic 3-way halogen headlights · 5 mph bumpers, painted in body color · Body color, protective side moldings · Retractable headlight washer system · Body color, flush door handles · Body color, outside mirror: right convex, left side flat · Front fog lights · Rear fog light (integrated with left light cluster) Safety:· Anti-lock brake system · Driver and front passenger air bag supplemental restraints · Automatic self-tensioning front seat belt system · Rear outboard 3-point seat belts with comfort adjustment · Rear center lap safety belt with retractor · Child-safety rear door locks

1 / 4 mile ：无/ 1 顶端估计速度：一百三十零英里每小时-电子有限公司，为北美洲燃油经济性市： 19 / 18哩（ 19 / 18哩quattro的）公路： 27 / 28哩（ 26 / 27哩quattro的）结合： 23 / 23哩（ 22 / 21哩quattro的）标准功能舒适/方便：·电子自动气候控制系统，包括空调·电源钢天窗·电源的Windows与一触式下降，锁定为后方的Windows ，夹保护和一触式，为前线的Windows ·保留配件权力for Windows和天窗·有色玻璃，带状挡风玻璃·电源机架和齿轮督导·方便接近的特点，用于Windows和可选的天窗·电子巡航控制与恢复，并加快特色·双电源镜与defog功能·电动后窗defogger ·电源中央门锁系统，包括主干和燃料的大门；选择性解锁·热导管后座区·照明手套箱，躯干，打火机/烟灰缸，引擎·点火的关键与积分光·双发亮的虚荣心镜· 4名乘客协助处理·时间延迟内部轻·反盗窃车辆报警系统· cupholders ·燃油上限吊架功能内部/座位和修剪：· 8路的权力前排座椅手动腰调整·前座地图的口袋· facette编织布·皮革包裹方向盘·折叠后方中心扶手与储藏容器·后方中心扶手·充分的长度中心控制台与储存着斌，包括cupholders · 60/40分裂/倍后座锁定椅背·真正的burled核桃木材装饰为短跑，车门面板和控制台·前方和后方，地毯，地板垫仪器仪表：·背光文书集群，红色照明·转速表和电动里程表·模拟时钟·室外温度衡量·行程里程表·冷却液温度衡量·油温计·伏特·间歇雨刮模式音频系统：·调幅/调频立体声收音机，镭射与反盗窃· 6喇叭声包·后窗天线·准备布线的CD换·准备蜂窝电话外墙：·气动3路卤素头灯·五英里每小时保险杠，描绘了在体色·车身颜色，保护方成型·可伸缩的头灯清洗系统·车身颜色，冲水门把手·车身颜色，外镜：右凸，左侧单位·前雾灯·后方雾轻安全：·汽车防抱死制动系统·司机及前座乘客安全气囊的补充约束·自动自我拉紧前座安全带系统·后方的舷外3点安全带与舒适性调整·后方中心濸安全带与retractor ·儿童安全后门的锁

Therefore, the crepuscular rays from a setting sun will appear to re-converge on the other side of the sky. At the anti-solar point 180 degrees around from the Sun, they are referred to as anticrepuscular rays.

也因此，来自落日或旭日的云隙光，视觉会在反向的天空重新会聚在一起，形成了一个和太阳相隔180度的反日点，这种光线特别被称为是反云隙光。

Some examples are given in this dissertation. First, the coordinate values of a group of discrete points on the cam profile are achieved by conventional design method which are then used as measured data of the cam profile. Then the kinematic analysis of the cam mechanism is performed by the method developed in this paper. The reverse results are compared to the theoretic values.

本文以已知从动件运动规律的凸轮机构为例，利用正设计方法求出凸轮实际廓线一组离散点坐标值，并以此作为凸轮检测数据，运用本文提出的分析方法进行运动反求，并将反求所得结果与理论结果加以分析比较。

By the numerical methods, the efficient and reliable numerical axisymmetric models have been established, especially the inner core passage, the effect of blade entrance angle and fan nozzle pressure ratio on thrust reverser effectiveness and discharge coefficient is investigated, the calculated results and the available experimental data are compared.

本文建立了外涵叶栅反推器的轴对称计算模型，给出了内涵计算域的有效处理方法，利用数值模拟手段研究了叶片几何进气角、外涵入口压比的变化对反推效率、流量系数等的影响规律，并将计算结果与可能得到的试验结果的数据点进行了比较。

In 2001, a game renounced the world splendidly, it called " the anti-terrorism elite ", played with the dementia of the family to pursue the intensity and can be described with fieriness at that time, all nearly of Internet caves set up this fund game inside extremely short time, even it is can getting more exaggerative at all say all computer of the whole country, install or now install by anti-terrorism elite still for more than 95 of one hundred copies at least, the streets and lanes are packed with the fierce gunplay sound at one time, the players are discussing the same topic unanimously --Get rid of the rifle, blind Ju, running in the location, clicking killing, trajectory,etc..

2001年，一款游戏横空出世，它叫《反恐精英》，当时玩家的疯狂追捧程度可以用白热化来形容，所有网吧几乎都在极短的时间里面安上了这款游戏，甚至可以毫不夸张的说，全国的所有电脑，起码有百份之九十五以上安装过或者现在仍然安装着反恐精英，一时间大街小巷充斥着激烈的枪战声，玩家们异口同声地讨论着同样的话题--甩枪、盲狙、跑位、点杀、弹道等等。

The next point to be staked is a common issue in the GPS RTK staking. It is proposed in this paper that the coordinate of a certain point be used to determine its direction and perpendicular distance from the road center.

在GPS RTK道路中线测设时，常遇到下一个点在何处的问题，做法是随测一个点的坐标，反算出该点趋向道路中线的方向与垂距，在行进之中，实现导向与导距。

Contrasting to the mouse, the tapping performance and the controllability which the twiddler owns were lower.

通过将twiddler与鼠标的点击绩效模型对比分析，反映出twiddler的点击绩效比鼠标的点击绩效低，操控比较困难。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。