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Using numerical simulation technology and method of orthogonal experiment design and single factor rotating optimization, this thesis makes a study of "lost core injection ", thus achieve the optimization of the parameters of molding process, to offer basic reference when developing production technology and mould of the plastics intake manifold. Based on the study of the status in quo and development trend of weight reduction on automobile, the application of plastics to automobile and intake manifold, then under the guidance of theory model and numerical simulation technology in the process of high polymer material, this thesis launches flowing main research work: First of all, on the basis of the three-dimensional model of the part and finite element net model, several designs of gating and running system are numerically simulated and analyzed via MPA of Moldflow.

本文在对当今汽车轻量化、零部件塑料化以及的汽车进气歧管塑料化的发展现状和发展趋势进行了研究和简要介绍，然后在高分子材料成型过程中的理论模型和数值计算方法的指导下，展开主要的研究工作：首先，在零件三维模型和有限元网格模型的基础上，使用Moldflow 的MPA模块对塑料进气歧管的多个浇注系统设计方案进行数值模拟，通过分析各个方案的充填质量、熔接线位置及数量等指标，得到了综合质量较高的4 个进料口的浇口位置及半限制型浇口大小的浇注系统。

It also bring forward an automobile manufacture and sales flattop based on e-business which can foster enterprises for just in time and rise the whole competence skill so that carry out Chinese automobile industry boomed.

本文尝试着从建立扁平化的电子商务系统，通过ERP系统整合中国的配件生产企业，结合整车生产厂家，提出一个以电子商务为龙头的汽车制造销售航母，以拉动式生产促进各企业的精细化生产和整体竞争能力，最终实现中国汽车业的腾飞。

As one of main matching plant of Fustian automobile,we supply the support process of over 30 varieties of components and arts including footplate hanging unit assembly and clutch pressure plate unit assembly and etc for all sorts of automobile and farm truck.

公司作为福田汽车的主要配套厂之一，为其各种汽车、农用车提供踏板吊挂总成，离合器压盘总成等30余种零部件的配套加工。

This article applies the Newton's second law to establish seven degrees of freedom ride model of automobile vibration on the stochastic road surface. The computer program for simulation the automobile vibration is written by MATLAB.

摘要本文应用牛顿法建立七自由度汽车乘坐振动模型，并用MATLAB编写程式，拟模汽车在随机路面激振下的响应下。

Unique may the entire vehicle disassemble the function, the automobile body for may gasify the type, does not use time completely bleeds off the automobile body in gas, may like folds clothes equally to fold, does not occupy the place!

独特的可全车拆卸功能，车身为可充气式，不用的时候把车身里的气全部放掉，就可像叠衣服一样折叠起来，毫不占地方！

Is establishing automobile maintenance and beauty chain stores throughout China, and will recommend to the car-loving class of China the most famous automobile maintenance products like QUAKER STATE, CARPLAN, BLUE GORAL and SLICK50, so as to make their life more beautiful and colorful.

同时，德杰仕有限公司借助美国公司的商业信息与经营理念，正向全国范围建立汽车美容养护连锁加盟店，把世界上最著名的汽车养护品牌QUAKER STATE、CARPLAN、BLUE GORAL 及SLICK50之产品，推荐给中国的爱车一族，愿您的生活因此而更加绚丽多彩。

Based on the automobile hardware fitting manufacturing, bent ourselves to produce better and stronger, worked hard, specialized in manufacturing various automobile's air-conditioner pump bracket, multi-pit、single-pit adjustable pulley、grease gun etc、engineering facilities and relative series products.

立足于五金汽车配件制造业，致力于做大做强，努力拓展专业生产各种型号的汽车空调泵托架，多坑、单坑调节轮、黄油枪等，工程配套及相关系列产品的生产领域。

It is very important to mount a headlight cleaner on automobile for the automobile security.

在汽车上安装车灯清洗器对于行车的安全具有十分重要的作用。

Thus the direct labor cost of making automobiles in the automobile factories themselves may be less than a third, say, of the total costs; and this may lead the incautious to conclude that a 30 percent increase in wages would lead to only a 10 percent increase, or less, in automobile prices.

以汽车装配为例，汽车工厂生产汽车的直接人工成本，可能不到总成本的1/3；有些人根据这个数字轻率地下结论说，工资增加30%，汽车价格只会上涨10%或更少。

Actuarial science applies mathematical methods in insurance and is a science between applied mathematics and insurance. Bonus-malus system of automobile insurance is an important topic in actuarial science. Markov chain, Bayes theory, the theory of delay differential equation and dynamic programming are used to study BMS, especially optimal BMS, of automobile third-party liability insurance in this dissertation, which is organized as follows:First, we study the properties of Chinese present BMS.

精算学是将数学方法应用于金融保险所形成的一套理论体系，是应用数学研究领域和金融保险研究领域这两者之间的一个边缘学科，汽车保险奖惩系统是现代精算学中的一个重要研究课题，本文主要用马尔可夫链、贝叶斯理论、时滞微分方程理论与动态规划等研究汽车第三者责任保险奖惩系统，特别是最优奖惩系统。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。