难点

Research on image recognition system The image recognition system is the key component of realizing the transistor die bonder as well as its difficult part.

2粘片机图像识别系统的研究图像识别系统是实现晶体管粘片机的关键部分，也是其难点，其精度直接影响到整个机器的精度。

It pointed out the basic historic mission of the first generation of CPC people headed by Zedong Mao is the independence of the country and national liberation, to overthrow the "three big mountains "pressing on the heads of Chinese people and all reactionary forces to hinder Chinese social progress, and from this formed the mode of thinking with the main character of revolution; The basic historic mission of the second generation CPC people headed by Xiaoping Deng is to transform the rigid economic and political system of traditional socialism, from thinking theory, eliminate the bookishness and"Left"dogmatism which hindered economic development and social progress and spread seriously, and from this formed the mode of thinking with the main character of transformation; Then, the basic historic mission of the third generation CPC people headed by Zemin Jiang is, on the basis of the cause opened by the first and second generations CPC people, to open up the new situations of building the socialist cause with Chinese characteristics, in theory and practice, realize overall creation in all fields of life, and from this formed the mode of thinking with the main character of creation; The historic mission undertaken by the new central leading group headed by Jintao Hu is to completely realize the objective of well-off society, strengthen international competitive, the main point is economic development, the stress is in the countryside, and the difficult point lies in social development.

指出：以毛泽东为代表的第一代中国共产党人的基本历史使命是国家独立和民族解放，推翻压在中国人民头上的三座大山和一切阻碍中国社会前进的反动力量，并由此形成了以革命为主要特征的思维方式，以邓小平为代表的第二代中国共产党人的基本历史使命是变革传统社会主义的僵化的经济政治体制，在思想理论上革除阻碍经济发展和社会进步的严重泛滥的本本主义和"左"倾教条主义，并由此形成了以改革为主要特征的思维方式；那么，以江泽民为代表的第三代中国共产党人的基本历史使命，则是在第一代、第二代中国共产党人所开创的事业的基础上，开拓建设中国特色社会主义事业的新局面，在理论和实践上，在社会生活的所有领域实现全面创新，并由此形成了以创新为主要特征的思维方式；以胡锦涛为代表的新的中央领导集体所肩负的历史使命是要实现全面建设小康社会的目标，增强国际竞争力，要点是经济发展，重点在农村，而难点在社会发展方面。

Whether we can break through the bottle-neck has great concern with the whole system of curriculum reform.

课程评价正在成为基础教育课程改革中的焦点和难点，课程评价改革也因此 www.8 t tt8。

It is the effective way used for breaking through teaching difficult point , there is enormous development potentiality.

它是用以突破教学难点的有效途径，有着巨大的发展潜力。

The article briefs technical difficulties in design and measures taken.

概括介绍了该工程设计中的技术难点和相应的设计措施。

Supply chain is a complicated system and the bullwhip effect is difficult for controlling.

供应链是一个复杂的系统，其中的牛鞭效应又是一个难点问题。

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

It is the heat in reform of system of cadre human affairs and difficulty problem.

是干部人事制度改革中的热点和难点问题。

But there are some problems and difficulties in studying and applying capacitance tomgraphy.

但它在理论上和应用中都还存在不少问题和难点。

For a long time, the integration of CAD/CAPP is one of difficulties in CIMS.

长期以来，CAD/CAPP信息集成一直是CIMS系统中的难点之一，且没有得到较好的解决。

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％。