物理过程

In this thesis, on the basis of theoretical analysis, numerical simulation and test study, the working principle and working process of central tube explosive ejection device and combustion gas ejection device equipped with star-shaped frame are analysed, the mathematical model of the inner ballstics of ejection devices and dynamical ejection model of submunition are established.

本文在理论分析、数值模拟与试验研究三者相结合的基础上，分析了中心管式爆炸抛撒装置与星形框式燃气抛撒装置的作用原理和作用过程，建立了抛撒装置内弹道的数学物理模型以及子弹抛撒动力学模型。

According to the theory of stress-strain relationship of transverse compressive deformation and wood rheological character, it studies the factors about deformation permanent fixation caused by different methods, and analyzes the component change of wood cell wall caused by four physical treatment methods in this experiment. According to the newest research achievements, it is thought that the absolute release of deformation stress and the effective formation of cohesion inside wood are the main reasons of compressive deformation's permanent fixation.

根据木材横纹压缩应力-应变关系、木材流变学特性等理论对木材压缩及变形固定常用方法对形成变形永久固定的主要原因进行了探讨，根据前人对横纹压缩变形的永久固定理论及本实验中使用的四种物理处理方法在处理过程中对木材细胞壁基质物质的变化和表现出的力学特性的影响进行了分析，结合国内外最新研究成果，认为形成木材压缩变形永久固定的主要原因是木材内部变形应力充分释放和内聚力的有效形成。

The research in this field mainly focuses on three respects: the application in engineering, numerical analysis and the well-posed property of the given problem.

自由边界问题是偏微分方程研究领域中的一个主要研究方向，有着非常广泛的实际背景，如在流体力学、化学反应过程、金融数学以及物理中的相变问题等研究领域就存在大量的自由边界问题。

The production process of walnut oil by physical refining , equipment and opreating parameters,were introduced.

介绍了核桃油物理精炼的工艺过程，实际生产设备和操作参数。

From ORACLE system structure, the paper organizes and allocates memory with SGA and PGA. The key of performance tuning is to confirm the hit ratio of system. The ORACLE system's store structure includes physicial structure and logical structure. So , it is the basis to decide the size of tablespace, data file and control file. The database object includes index, cluster, views and store procedure etc., the object have important effect on database. Lastly, it contrasts the ways of Based on Cost and Based on Rule and organizes the SQL under SQL/PLUS system environment.

本文从目前的医院信息系统现状分析，提出系统性能评价指标，并从ORACLE体系结构出发，对内存区中的系统全局区及程序全局区进行合理的组织与分配，确定合理的命中率，这是性能优化的关键；ORACLE存储结构采用的互为关系的逻辑存储结构与物理存储结构，故确定其中的表空间、数据文件、控制文件的大小是性能优化的基础；数据库对象结构中的索引、簇、视图、存储过程等对其进行合理的设计，对大型数据库的性能有着重要的影响；最后便是在SQL／PLUS境下，通过与基于代价与基于规则的方法进行比较，对合理高效的SQL语句进行组织，并列出优化后系统性能的情况。

From ORACLE system structure, the paper organizes and allocates memory with SGA and PGA. The key of performance tuning is to confirm the hit ratio of system. The ORACLE systems store structure includes physicial structure and logical structure. So , it is the basis to decide the size of tablespace, data file and control file. The database object includes index, cluster, views and store procedure etc., the object have important effect on database. Lastly, it contrasts the ways of Based on Cost and Based on Rule and organizes the SQL under SQL/PLUS system environment.

本文从目前的医院信息系统现状分析，提出系统性能评价指标，并从ORACLE体系结构出发，对内存区中的系统全局区及程序全局区进行合理的组织与分配，确定合理的命中率，这是性能优化的关键；ORACLE存储结构采用的互为关系的逻辑存储结构与物理存储结构，故确定其中的表空间、数据文件、控制文件的大小是性能优化的基础；数据库对象结构中的索引、簇、视图、存储过程等对其进行合理的设计，对大型数据库的性能有着重要的影响；最后便是在SQL／PLUS境下，通过与基于代价与基于规则的方法进行比较，对合理高效的SQL语句进行组织，并列出优化后系统性能的情况。

The status of tobacco leaf specific weight in the main tobacco-growing areas of China was introduced.

其中物理特性(主要包括填充性、吸湿性、叶质重、含梗率和燃烧性等)对卷烟制造过程、产品风格、成本及其他经济指标有着非常重要的影响[1]。

Compounds produces a spectrum having a bright yellow double line by noticing ① that there is no such line in the spectrum of light when sodium is not present ,② but that if the smallest quantity of sodium be thrown into flame or other sources of light ,the bright yellow double line instantly appears.

钠特有的物理现象，然后通过 by 结构从·反正两方面补述得出此结论的实验过程，也就·是说，这个复合句通过连接词和形态变化把三·大层意思连接起来，先结果，后叙事，其语序①·②③几乎与汉语的表达习惯相反。因此，只有·如果把少量的钠投入火焰或其它光源中，·会立即出现一道金黄色的双线；当钠不存在时，光谱中这条线就消失了。由此我们知道，钠或钠的任何化合物所产生的光谱都带有一道金黄色的双线。

Industrial application of a commercial software of model predictive controlfor five groups of twenty-five carbonation columns in a soda plant was introduced in this paper.

纯碱生产装置中的碳化塔既是多相反应器又是多步结晶器，其中包含了吸收、反应、多相流、传热和传质等多种复杂的物理、化学过程。

The work of this article is mainly focused on the following sections: 1）Detailed expatiated physical model of three sections and seven zones in extruding process of a single-screw extruder, and mathematical model of each zone and solutions to them.

本论文的研究工作主要集中在以下几个方面：较为详细的阐述了单螺杆挤出机挤出过程的三段、七区物理模型和各区段的数学模型及它们的求解方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了