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In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

According to the distributional characters,act according to circumstances,build up various kinds of characteristic areas of the industry.

针对小区的特点，因地制宜，建立各有特色的物管区域。

A vast oblong interior, 102 ft (31 m) by 265 ft (81 m), is thus created from a succession of domical elements that build up to the main dome, 102 ft (31 m) in diameter and 184 ft (56 m) high, in which a corona of 40 arched windows sheds a flood of light on the interior.

一个巨大的长方形内部，102英尺（31米）长，265英尺（81米）宽，是由一连窜圆顶式结构要素创建而成，建立了圆屋顶的主要部分，直径102英尺（31米），高 184英尺（56米），里面是一个冠状物般的40个拱窗，散发出一束光，停落于内部。

A handsome gentleman outlook, exact embattle on the court, devise strategies within a command tent, excellent personality fascination and communications. He is the man who knows how to use psychology and philosophy to discover a player's biggest potential. Everyone under his command admires him from the bottom of the heart. Phil's players strictly do what the coach tells them to do on the court, and that's why Phil Jackson can build up the strongest team ever.

风度翩翩的外表，精密的排兵布阵，运筹帷幄的战术安排，极高的人格魅力和感染力，最懂得用心理学和哲学去发觉一个球员的最大潜能，他手下的每个球员都对他怀有一份崇敬，在场上严格执行他的战术，所以Phil 可以打造出无坚不摧的球队，让我们再对这位哲学大师、心理学大师、球场兵法大家说一声：佩服佩服！！！

On the other hand, in order to build up the students' power to pass the exams, many teachers often pay little attention to enlivening their lifeless classes.

另一方面，为了培养学生的考试能力，许多老师通常一点都不关心如何调动学生在课堂上活跃起来。

As the disease progresses, fatty plaques and fibrous tangles of protein build up in the brain, ensnaring nerve cells and eventually strangling them to death .

但现在，科学家已经确定4种可引起常见早老性痴呆症的基因。在一项针对1300多个家庭的研究中，科学家发现了这些基因。

To build up scientific and reasonable cataloguing system for all collectable information resources and to form catalogue environment integrated of entitative and virtual information resources are the tiptop ambit for organizing and arrang- ing resources in academic libraries.

为所有可收集的信息资源建立科学、合理的编目系统，形成实体与虚拟两类信息资源集成的目录环境是高校图书馆组织整理资源的最高境界。

Finally, based on the perspective of social capital, it is necessary to take some measures to utilize the positive contributions and restrain the negative contribution which the social capital brings to technical innovation in the industrial clusters, such as to actively build up the regional innovation environment in industrial clusters, and to equilibrize between the local and globalization.

最后，本文基于社会资本的视角，提出要积极营造集群区域的创新环境、使产业集群在充分立足于本地创新网络系统的基础上，也要加强与集群外的全球化联系，从而达到发挥社会资本对技术创新的正面效应与抑制其负面效应的目的。

The result showed "TDR" can prolong the average and highest 1ife-span of the eumenid; it also reduced the serum; liver and brain tissue's Lpo from the white rats 'obviously, at the same time, it build up the immunity, anti-stress, endures anoxia. To do so, the dosage of the "TDR" is crucial enableto achieve the clinical effectiveness.

结果表明：天地人口服液能延长果蝇平均寿命和最高寿命，能明显地降低大白鼠的血清、肝、脑组织的LPO，同时提高血清SOD的活性，并且有增强小鼠免疫功能、抗疲劳、耐缺氧，其药效与剂量有关。

The current policy of China is to build up a society of peace and harmony. The core thought of it can be concluded as: democracy and the rule of law, equity and justice, faith and friendly, full of energy, peace, and eunomy, and the harmonious coexistence between people and nature.

我国目前的大政方针为建设和谐社会，其中核心理念为：民主法治、公平正义、诚信友爱、充满活力、安定有序、人与自然和谐相处的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。