查询词典 chemical process

This thesis consists of three chapters .In chapter one , the distributions of the last exit time and the corresponding results of Brownian motion in Markov process are introduced ,and previous remarkable achievements on the excursion of Brownian motion are numerated too ,also ,we introduce the main results and the history of elliptic diffusion process; In chapter two ,we summarily describe the excursion in Markov process and the result of the first hitting time of the elliptic diffusion process ; In last chapter ,we study estimates for the distributions of above three maximum excursions and minimum excursion in the elliptic diffusion process on R (d≥3), which leads the excursion of Brownian motion on ball on R (d≥3) to become a particular case .

全文共分三章，第一章介绍对称Markov过程中布朗运动的未离时分布及相关研究结果，列举了前人对布朗运动的游程问题的研究成果，并用较多篇幅介绍了一类特殊且非常重要的扩散过程——一致椭圆扩散过程的研究历史和本文的主要研究结果；第二章介绍Markov过程有关停时及游程的概念，叙述了一致椭圆扩散过程的定义，并给出了一致椭圆扩散过程有关首中时的结果；第三章是本文的核心部分，详细讨论了暂留一致椭圆扩散过程关于R~d(d≥3)上球的三类极大游程和极小游程的分布估计，使得布朗运动关于球的游程问题成为特例。

This paper introduces the software structure and real time process principle of real time NC system, according to the milling process character of NC system and the geometrical modeling method of computer simulation, presents a technique of subdividing roughcasts and data structures which applies to the computer simulation of the NC milling process; and in order to quicken the operating rate and enhance the reality of computer simulation, puts forward a logic algorithm of the 3D milling process of real time NC system which can display the effects of the computer simulation of 3D milling process of real time NC system dynamicly and efficiently in PC, such as the movement of tools, the elimination of materials, the shape changing of roughcasts.

刘景能，蒙艳玫（广西大学，530004）摘要：本文介绍了实时数控系统软件结构与实时工作原理，根据数控系统铣削加工的特点和计算机仿真几何建模方法，给出了适用于数控铣削加工仿真的毛坯离散细分方法和数据结构；为了加快处理速度和增强仿真效果真实感，提出了一种实时数控系统三维加工仿真的逻辑设计算法，即在单CPU机器单线程程序中使用普通软件循环和定时器模拟实现多线程，该算法可以在微机上动态显示高质量的铣削加工过程刀具的运动，材料的去除和毛坯形状的变化等数控加工三维仿真效果。

Cleaning slubs and thin place should be adopted in winding process to reduce hairiness, speed should be reduced in warping process to forbid yarn over elongation ,size formula and sizing process parameters should be optimized in sizing process to cover hairiness ,operating time and weft insertion time and so on should be set reasonably in weaving process to guarantee product quality

在络筒工序要最大限度地清除粗细节和其他有害疵点，减少毛羽；在整经 J-序要适当降低车速，避免纱线过度伸长；在浆纱工序要对浆料配方及浆纱工艺参数进行优选，贴伏毛羽；在织造工序要合理确定开口时间及引纬时间等工艺，才能保证产品质量符合要求。

Content Summary: To individual,according to social demands and needs,process of moral education is an understanding process which socializes student s personality and consciousness and which dovelops student s understanding process,emotion process,and will process.

德育是素质教育的重要内容之一，人们不断研究探索德育的最佳内容、途径、方法和影响因素，但是，很少有人关注心理健康问题对德育的影响，很少研究德育中的心理健康问题，那么，德育中存在心理健康问题吗？

Finally, the static characteristic curves of the new type friction buffer have been given by the numerical computing. The specialty of the mechanism is: the angleαandβare variable in the loading process and unloading process. So the load amplification factor is bigger in the beginning of loading process, and is less in the end of loading process, is least in the whole unloading process.

论文最后通过计算分析，绘出了新型摩擦缓冲器静态特性曲线，并指出该机构的特别之处在于，加载过程和卸载过程中角度α和β是变量，因而载荷的放大系数在加载开始时较大，加载结束时较小，并在卸载过程中更小。

Materials accounting, including six parts, namely the fermentation process to account for two, fermentation materials account for an adsorption process to account for, Screening process to account for, anti-washing, elution process to account for, refined the process to account for.

物料衡算包括六部分，分别是二级发酵过程衡算，一级发酵物料衡算，吸附过程衡算，过筛过程衡算，反洗、洗脱过程衡算，精制过程衡算。

Present technologies of BPM separate the process information from business process and manage them in a depository. These really make the business process agiler. But on the other side, present technologies of BPM cant to do well with the special business process information, such as business logic in process, business policy and so on. And the business experts without IT skills are excluded from the whole life cycle of development project though they are the really expert who conducting company business.

当前业务过程管理很好地把业务过程逻辑从业务过程中抽离出来，进行中性的维护和管理，实现了业务过程的一定敏捷性，而依次同时，当前业务过程管理对业务过程活动的内部逻辑、业务策略等特殊过程性信息的管理较弱，并且把非IT技术人员的专业业务人员拒之整个开发过程之外，这显然大大限制了业务过程的敏捷化。

On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

本文在综述醋酸-水体系分离方法的基础上，以醋酸丁酯、醋酸异丁酯、醋酸异丙酯为挟带剂，对醋酸水溶液进行共沸精馏过程研究，详细研究了填料高度、水与挟带剂的配比、醋酸初始浓度等对共沸精馏分离效果的影响；对醋酸-水体系进行普通精馏和共沸精馏过程模拟计算，讨论了回流比、理论板、进料位置、进料温度和浓度对精馏过程的影响，获得了对醋酸-水体系精馏过程实际生产具有指导意义的较佳的工艺操作参数、共沸精馏塔的工艺设计放大的基础数据，并对两种精馏方法的投资、操作能耗进行了比较；同时在共沸精馏模拟计算的基础上进行了共沸精馏塔的初步工艺设计计算，并对填料塔的主要辅助设备及塔内件进行了初步选型。

Based on the construction requirement of high-speed railway, some problems are dealt with during the whole construction project, like the mould process, concrete iron process, concrete process and the pre- stressed concrete process. This paper makes a research for the construction process of double track box girders, and submit the specific key points on every link in the production chain.

根据高速铁路建设和施工规范的要求，通过对双线整孔简支箱梁预制工艺的研究和工序的分解，从总体施工方案、模板施工工艺、钢筋制作安装工艺、混凝土施工工艺、预应力施工工艺等方面进行了详细的阐述，并提出各个施工环节的具体要点和注意事项。

The Automatic Control Valves ABS is ABS for short, which is based on the conventional brake system security technologies to enhance improved by controlling the brake hydraulic flaps to achieve control of the wheel locking, the braking process , only when the wheels tend to be controlled when locking, ABS will tend to locking of the wheels anti-lock brake pressure regulation; in the control wheel was not tended to locking, the braking Butterfly Valves process and the conventional system exactly the same dynamic system, the braking process, its work process is actually locking - release - Locking - release cycle of the working process, the vehicle is always in the critical state of locking of the roll gap.

而ABS是制动防抱死系统的简称，它是在常规制动装置基础上的加强改进的安全技术，通过控制刹车油压的收放，来达到对车轮抱死的控制，在制动过程中，只有当被控制车轮趋于抱死时，ABS才会对趋于抱死车轮的制动压力进行防抱死调节；在被控制车轮还没有趋于抱死时，制动过程与常规制动系统的制动过程完全相同，其工作过程实际上是抱死—松开—抱死—松开的循环工作过程，使车辆始终处于临界抱死的间隙滚动状态。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48